Answer:
Chemical Energy
Explanation:
Because solar energy is harvested by chemical energy while being in a process that water and carbon dioxide is converted to gluecose.
you are studying nest building in two bird species. species a builds a long hanging nest while species b builds a short nest that sits on top of tree branches. you interbreed the birds in the lab and then examine the nests that the offspring produce. qtl analysis showed that whether a nest is built to hang or sit is affected by one genetic locus. the length of the nest is also determined by the same genetic locus. what can you infer about the evolution of this behavior? group of answer choices it is a complex behavior that evolved out of a combination of two simpler behaviors. it is a complex behavior where different aspects of the behavior are affected by the same set of genetic instructions. it is a simple behavior that evolved out of a combination of even simpler behaviors. it is a learned behavior without a genetic component.
It is a complex behaviour where various aspects of the behaviour are influenced by the same set of genetic instructions, making option A the correct response.
The reproductive implications must be taken into account when analysing complex behaviours such as nest building for a bird that has never seen a nest. I'll consider the case in which the male bird constructs the nest on his own in the explanation that follows (this is not always the case). The act of building a nest is closely related to reproduction. Through resource acquisition, it shows a male bird's parental qualities to a potential female mate. Additionally, nest building enables a relativistic comparison of prospective partners to the female. A female can evaluate several different nests and decide which one contains the best potential mates.
It is well known that genetics encodes an organism's physical development. The manner in which the systems within the physical organism receive, process, and react to external signals determines the behaviours of that organism in the future (stimuli). Due to the aforementioned affordances offered by the stick's physical characteristics, a bird may be able to distinguish between branches on a tree and sticks it has played with. It will eventually bring a stick up to the tree for whatever reason. This action's justification is arbitrary because it could be justified in a wide variety of ways, some of which might be interesting and others of which might be "bird-brained.
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What are 5 environmental factors that influence the growth of organisms?
Environmental factors such as temperature, light, water, nutrients and pollution can have a direct impact on the growth and survival of organisms.
The temperature of the environment can affect the rate of metabolic reactions in organisms, which can influence their growth and development. Light is essential for environmental factor photosynthesis, the process by which plants convert energy from the sun into chemical energy. The environmental factor intensity, duration and wavelength of light can affect the rate of photosynthesis and the growth of plants. Water is essential for the survival and growth of most organisms. Nutrients such as carbon, nitrogen, and phosphorus are essential for the growth of organisms. Pollution can have a negative impact on the growth of organisms. environmental factor, These factors can vary from place to place and can change over time, influencing the population dynamics and ecosystem function.
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1. identify the type of ecosystem service being provided in each of the following
examples. (1.5 points: 0.5 point for every 2 correct examples)
natural resource
type
cornfield in kansas
bacteria that decompose
waste along gulf coast
ocean currents that keep
pacific northwest air cool
and moist
flower garden at a national
landmark
lumber from an oak tree
animals that eat seeds
then spread the seeds
through their waste
Answer:
Cornfield in Kansas – Provision of Natural Resources – The cornfield in Kansas provides a natural resource in the form of corn, which can be used as food or converted into biofuel.
Bacteria that decompose waste along the Gulf Coast – Waste Management – The bacteria break down organic matter, helping to reduce the amount of waste in the environment.
Ocean currents that keep Pacific Northwest air cool and moist – Climate Regulation – The ocean currents help to regulate the temperature and humidity of the air in the Pacific Northwest.
Flower garden at a national landmark – Aesthetic Value – The flower garden provides an aesthetically pleasing view for visitors to the landmark.
Lumber from an oak tree – Provision of Natural Resources – The lumber from an oak tree is a natural resource that can be used to make furniture or other items.
Animals that eat seeds then spread the seeds through their waste – Pollination and Seed Dispersal – The animals help to spread the seeds of the plants, aiding in pollination and dispersal.
When you eat a meal, the foods you eat are broken down by the digestive system into nutrients that can be used by the cells of the body. Consider the processes involved in the digestive system: ingestion, digestion, absorption, and elimination. How does the digestive system interact with other body systems to accomplish its purposes? Select ALL that apply.
Responses
A The respiratory system transports oxygen to the organs of the digestive system
B The nervous system controls the motion of the smooth muscles in the digestive tract.
C The circulatory system transports absorbed nutrients from the small intestine to the cells
D The digestive system eliminates carbon dioxide from the circulatory system.
E The endocrine system controls the release of hormones and enzymes required for digestion of food in the digestive tract.
Answer:
A and E
Explanation:
It's not C because the circulatory system doesn't transport nutrients, it transports blood to the body. It's not D because the digestive system eliminates some of the carbon dioxide produced from the digestion of the food, but not from the circulatory system. It's not B because the brain is what controls the muscle in the digestive tract, not the nervous system.
Evaluate the effects of severe combined immune deficiency on a child born
without T cell immunity.
The immune system of a child with SCID is minimal or absent. The T cells that fight infection make up the immune system.
Is it possible for a baby to be born with no immune system?Severe combined immunodeficiency (SCID) is a rare genetic disorder that affects the immune system and can have life-threatening effects. A form of primary immune deficiency, it is. Each year, one in 58,000 babies in the United States is born with SCID.
Do T cells exist in newborns?The majority of T cells in infants contain TRECs. A test known as polymerase chain reaction (PCR) can reliably detect the TRECs even on dried blood samples due to their small size.
How does SCID affect T and B cells?SCID is a rare and fatal syndrome caused by multiple genetic factors in which natural killer (NK) lymphocytes, T lymphocytes, and B lymphocytes fail to function together. Due to these flaws, people are extremely susceptible to serious infections.
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if ants in particular were extermely rare in the region and therfore worthy of special preservation efforts how would that affect you choice of site to conserve
If ants, in particular, were extremely rare in the region and therefore worthy of special preservation efforts, then it would be important to select a site for conservation that is known to be a habitat for the specific ant species that is being protected. This would ensure that the preservation efforts are targeted at the right location and have the greatest chance of success.
When choosing a site for conservation, it is important to consider the specific needs and habitat requirements of the species that is being protected. For example, if the ant species in question is known to inhabit a specific type of ecosystem, such as a forest or a desert, then the conservation site should ideally be located in that type of ecosystem. Also, it is important to consider factors such as the presence of food sources, nesting sites, and potential threats such as habitat destruction or pesticide use in the area. By selecting a site that meets the needs of the species, conservation efforts will have a greater chance of success.
The answer is based on general knowledge, as no context is given.
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Which nucleotide will base-pair with the enol form of 5-bromouracil? Cytosine
Uracil
Thymine
Guanine
Answer:
The nucleotide that will base-pair with the enol form of 5-bromouracil is thymine. Enol forms of nucleotides are produced when the phosphate group at the 5' position of the nucleotide is removed, and thymine is the only nucleotide that can base-pair with this form of 5-bromouracil.
regarding neurons, which of the following statements is false? question 31 options: a) when neurons form vast networks, they produce intelligence and consciousness. b) no two neurons are exactly alike, but most have four basic parts. c) neurons carry information from the senses to the brain and also activate muscles and glands. d) the axons are the tree-root like parts of neurons that are specially designed to receive the messages from other neurons.
Because they are polarised and have discrete morphological regions with different types of receptors, neurons vary from the majority of other cells found throughout the body.
Synapse is a neural junction rather than a component of a neuron. The area between neurons acts as the site of electrical impulse transmission. Because they are polarised and have discrete morphological regions with different types of receptors, neurons vary from the majority of other cells found throughout the body. They are understood to be the spaces between neurons. Despite the enormous variety and billions of neurons, they may be divided into three fundamental kinds based on how they function: relay neurons, which have long dendrites and short axons, and motor neurons, which have short dendrites and long axons (short dendrites and short or long axons). Electrical excitability (mainly across the plasmalemma), secretion (primarily vesicular & peptides extruding channel dependent), molecular synthesis (largely proteins), and growth and plasticity are the four basic functional characteristics of neurons. It has at least one nucleus.
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Release of Hormone From the Anterior Pituitary
Order the following in the correct sequential order of stimulation of the anterior pituitary.
-Release of GnRH from hypothalamic neurons -GnRH travels through portal system circulation -Stimulation of endocrine cells in anterior pituitary -Release of FSH
-FSH enters into general, systemic circulation -FSH binds to ovary, promoting follicular growth and development and release of estrogen
The correct sequential order of stimulation of the anterior pituitary is:
Release of GnRH from hypothalamic neuronsGnRH travels through portal system circulationStimulation of endocrine cells in anterior pituitaryRelease of FSHFSH enters into general, systemic circulationFSH binds to ovary, promoting follicular growth and development and release of estrogen.The anterior pituitary, also known as the adenohypophysis, is a gland located at the base of the brain that is responsible for the production and release of several hormones. These hormones regulate a variety of physiological processes in the body, including growth and development, metabolism, and reproduction.
This stimulation of the anterior pituitary describes the process of how the hypothalamus releases gonadotropin-releasing hormone (GnRH) which then stimulates the anterior pituitary to release follicle-stimulating hormone (FSH) into the bloodstream. The FSH then travels to the ovaries, where it promotes the growth and development of the follicles and the release of estrogen.
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The soil of the Arctic freezes completely during the winter. During the
summer, a little bit of the top soil turns soft. Arctic plants have special
structures in order to survive in this soil. Based on this information, what
structure of arctic plants is most likely different from other plants?
A. roots
B. stems
C. leaves
D.flowers
Which of the following is a CORRECT example of long-loop negative feedback? A) FSH inhibits the release of GnRH.
B) TSH stimulates the release of TRH.
C) Glucocorticoids inhibit the release of CRH.
D) TSH inhibits the release of TRH.
E) GH stimulates the release of GHIH.
Glucocorticoids inhibit the release of CRH This is a true example of long-loop negative feedback. Here option C is the correct answer.
Long-loop negative feedback refers to a process in which a hormone secreted by a gland in the endocrine system regulates the activity of the same or another gland. In this process, the hormone first acts on a target organ, which then sends a signal back to the original gland to inhibit or decrease its activity.
In the example given, Glucocorticoids inhibit the release of CRH, which is a correct example of long-loop negative feedback. Glucocorticoids are hormones secreted by the adrenal glands and they can inhibit the release of CRH (corticotropin-releasing hormone) from the hypothalamus, which in turn controls the release of ACTH (adrenocorticotropic hormone) from the pituitary gland.
This feedback loop helps to maintain homeostasis of the corticotropin-adrenocortical axis.
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Match the vocabulary word with the proper definition.
Definitions
_____ 1. provide a mechanical barrier at body openings
_____ 2. disease-causing agents
_____ 3. a type of white blood cell
_____ 4. living organisms that help protect the body
_____ 5. the most important mechanical barrier
_____ 6. a slimy substance that traps pathogens
_____ 7. the process in which leukocytes engulf pathogens
_____ 8. destroy pathogens on the outer body surface, at body openings, and on inner body linings
_____ 9. the first reaction of the body to tissue damage or infection
_____ 10. physically block pathogens from entering the body
_____ 11. protects the body from worms, germs, and other agents of harm
_____ 12. sweep mucus and pathogens toward body openings
Terms
a. biological barriers
b. chemical barriers
c. cilia
d. immune system
e. inflammatory response
f. leukocyte
g. mechanical barriers
h. mucous membrane
i. mucus
j. pathogens
k. phagocytosis
l. skin
The Mucous membrane provides a mechanical barrier at body openings
Pathogens are disease-causing agents
Leukocyte is a type of white blood cell
Biological barriers living organisms that help protect the body
The Skin is the most important mechanical barrier
Mucus is a slimy substance that traps pathogens
Phagocytosis is the process in which leukocytes engulf pathogens
Chemical barriers destroy pathogens on the outer body surface, at body openings, and on inner body linings
The inflammatory response is the first reaction of the body to tissue damage or infection
Mechanical barriers physically block pathogens from entering the body
The immune system protects the body from worms, germs, and other agents of harm
Cilia sweep mucus and pathogens toward body openings
What is the immune system?The immune system is the system of organs and tissues that help protect the body from infections and from pathogens.
The immune system consists of
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What happens to nutrients and matter in a biogeochemical cycle?
Matters/Materials pass through trophic levels and elements are recycled between ecosystems using biogeochemical cycles. Normally, as nutrients move through the ecosystem, the compounds they form are transformed.
Unlike energy, the matter is recycled in ecosystems. Decomposers release nutrients as they decompose dead organisms. Plants absorb nutrients through their roots. When the primary consumer eats the plant, the nutrients are passed on. Biogeochemical cycles also called nutrient cycles, describe the movement of chemical elements through various media such as air, soil, rocks, water, and organisms. Biogeochemical cycles which keeps essential elements available to plants and other organisms. The term biogeochemical cycling refers to the movement of nutrients such as carbon, hydrogen, and phosphorus between biological and geological systems (abiotic elements). Nutrient cycling is therefore called biogeochemical cycling.
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a region of the chromosome where two chromatids are attached to one another.
Centromere is the region of the chromosome where two chromatids are attached to one another.
Each chromosome is composed of two identical copies called sister chromatids, which are joined at a specific point called the centromere. The centromere is a region of the chromosome that is responsible for the separation of the sister chromatids during cell division. At the beginning of mitosis and meiosis, the chromatids are replicated and joined together, and the centromere serves as the point of attachment that keeps the chromatids together. During cell division, spindle fibers attach to the kinetochores located at the centromeres and pull the sister chromatids apart towards opposite poles of the cell, ensuring that each daughter cell receives a complete set of chromosomes.
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What are the main 2 components of environment?
main 2 components of environment are : biological component and physical component which includes living and nonliving things.
The term "biotic components" refers to the living elements of an ecosystem, such as the association of numerous interrelated populations from various species coexisting in the same environment. The populations are those of the microbiological community, the plant community, and the animal community. Abiotic elements are the main determinants of where and how effectively an organism may survive in its environment. A single component can restrict an organism's range, acting as the limiting factor even while these factors interact with one another. The main physical elements are temperature, water (rainfall), light (energy), soil, and atmospheric pressure.
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Which two major parts of the earth system does this photo most clearly show?
Answer:
Geosphere, Hydrosphere
Explanation:
The geosphere is the earth itself: the rocks, minerals, and landforms of the surface and interior.
The Hydrosphere is all the waters on the earth's surface, such as lakes and seas, and sometimes including water over the earth's surface, such as clouds.
As a group, choose one set of daughter cells in late telophase I from Model 5. Imagine that those cells now undergo meiosis II. Draw at least four resulting haploid cells that could result.
As a group, choosing one set of daughter cells in late telophase I from Model 5. that those cells now undergo meiosis II. four resulting haploid cells that could result is four haploid offspring cells.
Before the cell reaches meiosis II, certain species have a very brief interphase, also known as interkinesis. Meiosis II occurs in the two daughter cells that are created following meiosis I. Four haploid cells are produced as a result of the separation of the two sister chromatids that are present in daughter cells during the meiosis II process. Similar to mitosis, this process. As a group, choose one set of daughter cells in late telophase I from Model 5, that 4 haploid daughter cells now undergo meiosis II. Draw at least four resulting haploid cells that could result.
Attached the resulting haploid that could result cells
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a controlled scientific test of a hypothesis is called
An experiment is a method used in science to test a hypothesis by gathering data in a controlled conditions.
The scientific method is used by scientists, including biologists, to formulate inquiries about the natural world. The scientific method starts with an observation, which prompts a question from the scientist. They then create a hypothesis—a tested explanation—that responds to the query.
One (or a few) parameters are changed at a time while all other variables are maintained constant in a controlled experiment, which is a scientific test carried out under controlled circumstances. In the part after this, controlled experiments will be thoroughly examined.
The experiment consists of two groups, each of which is similar other from the fact that one receives a treatment (water) and the other does not. The experimental group in an experiment (in this case, the moistened pot) is referred to as such, whereas the control group (in this case, the dry pot) is referred to as such. In order to determine whether the treatment has an impact, we can compare results with the control group.
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in the glycolytic pathway, how many net nadhs are formed directly from the decarboxylation to co2 and acetyl-coa of pyruvate produced from the metabolism of 1 molecule of glucose?
The conversion of one glucose-2 molecule into co2 and acetyl-coa during the process of decarboxylation.
Explain what metabolism is.The chemical processes that occur inside the body's cells during metabolism convert food into energy. Our bodies use this energy for everything they do, including moving, thinking, and developing. The chemical processes of metabolism are regulated by specific proteins in the body.
Losing weight equates to metabolism?Being slim is not always a result of having a rapid metabolism. According to studies, those who are overweight or obese frequently have quick metabolisms. To maintain fundamental bodily functions, their bodies require more energy.
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The process by which plants lose water by evaporation is called(a)Respiration(b)Photosynthesis(c)Transpiration(d)Absorption
The process by which plants lose water by evaporation is called
c)Transpiration
The process of transpiration involves the transfer of water through a plant and its evaporation from aerial portions including leaves, stems, and flowers. Although water is essential for plants, the roots only utilise a small portion of the water they absorb for growth and metabolism. By transpiration and guttation, the remaining 97–99.5% is lost. Stomata, also known as pores on the surface of leaves, are typically seen on the undersides of the foliage of most plants. The guard cells and stomatal accessory cells that surround the stomata, collectively known as the stomatal complex, are responsible for opening and closing the pore. Transpiration takes place through the stomatal openings and can be considered a required "cost" linked with the opening of the stomata to facilitate the absorption of water.
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someone’s please help? I’m totally lost
the teeth of carnivores are pointed and are good for puncturing and ripping flesh. the teeth of herbivores are flat and are good for grinding and chewing. which statement best explains these observations?
Herbivores have evolved from carnivores statement best explains these observations.
Animals that eat only plants are called herbivores. Animals that only eat meat are called carnivores. Animals that eat both plants and meat are called "omnivores." An animal's diet does not depend on its size. Even very small animals can be carnivores, while some of the largest animals only consume plants.
Carnivorous animals have long, sharp teeth that are designed for tearing flesh. These teeth also kill their prey by puncturing vital organs.
Herbivorous animals have teeth that are made for tearing and crushing leaves from plants. As a result, herbivores have sharp front teeth that let them cut leaves, and flat teeth at the back of their mouth that let them crush tough and fibrous plant material like leaves.
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which nutrients regulate the release of energy and other aspects of metabolism rather than supplying energy?
Vitamins and minerals are nutrients regulate the release of energy and other aspects of metabolism rather than supplying energy.
In general, Magnesium plays a important roles in regulating our metabolism, and most importantly with fat and protein. It also helps to minimize hormonal, immune, cardiovascular, and neuromuscular functions, by making it a crucial components for everyday functioning.
Vitamins and minerals also plays diverse role in energy metabolism as they are required as functional parts for enzymes functioning that involves energy release and storage. for example Thyroxine, a hormone made and released by the thyroid gland, plays a key role in determining how fast or slow the chemical reactions of metabolism can occurs in an individual.
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which terms are used when discussing pharmacokinetics? select all that apply. steady state polymorphism onset and duration bioavailability therapeutic window receptor interactions
For pharmacokinetics we use the acronym ABCD, standing for administration, bioavailability, clearance and distribution.
which terms are used when discussing pharmacokinetics?
The four components of Pharmacokinetics are absorption, distribution, metabolism, and excretion. This refers to distribution. The other three components of Pharmacokinetics are absorption, metabolism, and excretion.This is closely related to but distinctly different from pharmacodynamics, which examines the drug's effect on the body more closely. The four main parameters generally examined by this field include absorption, distribution, metabolism, and excretion (ADME).There are four main components of pharmacokinetics: liberation, absorption, distribution, metabolism and excretion (LADME). These are used to explain the various characteristics of different drugs in the body.To learn more about receptor refers to:
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A substance that’s been genetically engineered into transgenic rice has the potential to treat cancer
One substance that has been genetically engineered into transgenic rice has the potential to treat cancer. This substance, known as a rice-based therapeutic protein, has been found to have anti-tumor properties, making it a potential treatment for cancer.
The process of genetically engineering a crop like rice to produce a therapeutic protein involves introducing a gene that codes for the protein into the plant's genome. This is done using a technique called recombinant DNA technology, which allows scientists to precisely control the location and expression of the gene within the plant. Once the gene is inserted, the plant is able to produce the protein, which can then be harvested and used as a treatment.
One of the benefits of using transgenic rice as a source of therapeutic proteins is that it is a highly efficient and cost-effective method of production. Rice is a staple crop that is grown in many parts of the world, and it is relatively easy to grow and harvest. Additionally, the cost of producing transgenic rice is significantly lower than that of traditional methods of protein production, such as using bacteria or animal cells.
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imagine an instance where there are two parents, and both have polydactyly (i.e., six fingers on each hand), a trait which is determined in this example by a single gene. they have four children, none of whom have polydactyly. what is the probability their next child will have polydactyly
The probability their next child will have polydactyly is 0.75 that is 75% as both have polydactyly so chances are high that next child have this disorder.
Polydactyly is a form of genetic condition :primarily caused by flaws in the patterning of the developing limbs' anterior and posterior surfaces, and is inherited as an autosomal dominant condition with varied penetrance.
Polydactyly is a form of mutation, right?Isolated polydactyly can take many different forms when the GLI3 gene is mutated. These include postaxial polydactyly types A (PAP-A) and B (PAP-A/B), which are distinguished by an additional digit adjacent to the small toe or little finger.
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The complete question is :
Imagine an instance where there are two parents, and both have polydactyly (i.e., six fingers on each hand), a trait which is determined in this example by a single gene. They have four children, none of whom have polydactyly. What is the probability their next child will have polydactyly?
0.75
0.20
0.00
0.50
0.25
Please help
How does the second line of defense in the immune system fight staphylococcus
I WILL MARK BRIANLIST JUST HELPPPPP
Answer:
THROUGH T CELL ACTIVATION AND B CELL PRODUCTION OF ANTIBODIES
MARK AS BRAINLIEST
Cenozo
0102004
mbrion
-66.4-mass extinction-
141-first flowering plants
195-birds evolve from reptiles
230- first dinosaurs and mammals
-245-
200-mass extinction
reptiles appear
first insects
3:40
360-
370- amphibians appear
420-plants colonize land
-540-
700- simple multicellular organisms evolve
2,100 oldest eukaryotic fossils
In each of the layers
of rock, different
fossils can be found
according to major
extinction events.
Comparing fossils at
various depths, one
can compare fossil
records
Relative dating has been defined as the dating method by which the geologically occurred past events are arranged in a sequential order.
What is carbon dating?Carbon dating is the method that enables the geologist to determine the age of the rocks by comparing past events.The amphibians that appeared first, just about 370 million years back.
The elephants that first appeared just about 60-55 million years back, in the Cenozoic era and the dinosaurs existed in the Mesozoic era up to about 65-70 million years back. So, it is clear that elephants appeared after dinosaurs.
Therefore, Relative dating has been defined as the dating method by which the geologically occurred past events are arranged in a sequential order.
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f a population is at hardy-weinberg for a locus with two alleles, is there any allele frequency at which the heterozygote frequency is lower than both (individually) of the two homozygous frequencies? for example, with alleles a and a, and assuming hw, is there a frequency of a (called p) wherein the expected aa genotype frequency is rarer than the expected aa frequency and the expected aa frequency is rarer than the expected aa frequency?f a population is at hardy-weinberg for a locus with two alleles, is there any allele frequency at which the heterozygote frequency is lower than both (individually) of the two homozygous frequencies? for example, with alleles a and a, and assuming hw, is there a frequency of a (called p) wherein the expected aa genotype frequency is rarer than the expected aa frequency and the expected aa frequency is rarer than the expected aa frequency?
For a locus with two alleles in a population at Hardy-Weinberg equilibrium, there isn't an allele frequency where the heterozygote frequency is lower than both of the homozygous frequencies.
The frequency of heterozygotes—people who have one copy of each allele—is equal to the product of the frequencies of the two alleles under Hardy-Weinberg equilibrium conditions. This means that neither of the two homozygotes' frequencies can ever be lower than the frequency of heterozygotes (individuals with two copies of the same allele). In other words, there is no allele frequency at which the heterozygote frequency is lower than both of the two homozygous frequencies for a locus with two alleles if a population is at Hardy-Weinberg equilibrium.
Take a locus, for instance, that contains the two alleles A and a. Let q represent the frequency of the an allele and p represent its frequency. For people who have one copy of each allele, or heterozygotes, the Hardy-Weinberg equilibrium equation is: pq = heterozygote frequency For those with two copies of the same allele, or homozygotes, the Hardy-Weinberg equilibrium equation is: AA frequency = pp Frequency aa = q2. Since p and q are integers between 0 and 1, neither p nor q can be less than 0, and consequently neither p2 nor q2 can be less than 0.It is therefore impossible for either of the two homozygotes to have a frequency lower than 0. It is impossible for the frequency of heterozygotes to be lower than either of the two homozygotes because the frequency of heterozygotes is equal to pq, which is the product of p and q, and because both p and q are greater than or equal to 0. There is therefore no allele frequency at which the heterozygote frequency is lower than both of the two homozygous frequencies for a locus with two alleles in a population at Hardy-Weinberg equilibrium.
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TRUE/FALSE. Scientists long believed that two nerve clusters in the human hypothalamus, called suprachiasmatic nuclei (SCNs), were what controlled our circadian rhythms. Those rhythms are the biological cycles that recur approximately every 24 hours in synchronization with the cycle of sunlight and darkness caused by Earth`s rotation. Studies have demonstrated that in some animals, the SCNs control daily fluctuations in blood pressure,
It is true that SCNs play a critical but not exclusive role in regulating circadian rhythms.
What is circadian rhythms?A circadian rhythm, also known as a circadian cycle, is a natural, internal mechanism that governs the sleep-wake cycle and occurs about once every 24 hours. It can refer to any activity that starts within an organism and responds to its surroundings. SCNs serve an important but not only function in controlling circadian rhythms. The normal 24-hour cycle of physical, emotional, and behavioral changes that the body goes through. Circadian rhythms are mostly influenced by light and darkness and are controlled by a tiny portion of the brain in the center.
Here,
It is true that SCNs serve an important but not only function in controlling circadian rhythms.
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