Exocrine glands discharge substances onto the surfaces of your body through holes. The exocrine glands produce milk, saliva, tears, sweat, and digestive fluids.
Describe hormones.The chemical messengers that communicate with the body's tissues and blood are hormones. Hormones have a long-lasting, gradual effect on a variety of bodily functions, including mood, sexual function, reproduction, or metabolism, which is how your body converts food into energy.
What bodily tissues produce hormones?The majority of the hormones produced and released by your body's endocrine system come from specialized glands. An organ known as a gland produces one or more compounds, including hormones, digestive fluids, sweat, and tears. Your bloodstream receives hormones straight from endocrine glands. Feb
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phenylketonuria (pku) is a disease that results from a recessive gene. two normal parents produce a child with pku. what is the probability that a sperm from the father will contain the pku allele? 1/2 3/4 2/3 1/4 1/3 what is the probability that an egg from the mother will contain the pku allele?
Autosomal recessive traits include phenylketonuria . Phenylalanine is an amino acid that PKU patients cannot process.
There is phenylalanine in many everyday foods. However, it can accumulate in the bloodstream of kids with PKU. This can result in a variety of issues ranging in severity from mild to severe, including issues with growth, mood, behaviour, and thinking.
Both parents must be heterozygous if two healthy parents have a child with phenylketonuria .
Parents' genotypes are Aa and Aa.
1) A father's sperm has a 50% chance of carrying the PKU gene.
2) There is a 50% chance that an egg contains the PKU allele.
3) The likelihood that the following child will have PKU and the genotype aa is 1/4.
4) The chance that the following child will be heterozygous for the PKU allele is 50%.
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The cell body of a neuron is housed in the spinal cord, and its axon travels all the way to the effector it controls. Is this an autonomic neuron or a somatic motor neuron? What is the effector?
The cell body of a neuron is housed in the spinal cord, and its axon travels all the way to the effector it controls. It is a somatic motor neuron with an affector that innervates skeletal muscles.
Neurons are the structural and functional units of nerve cells that form a nervous system consisting of cell bodies, nerve fibers, and their sheaths. Neurons function to receive stimuli from the environment through dendrites and transmit stimuli to the axons through the cell body.
The somatic nervous system is a system that works and controls the movements of the limbs that we are aware of. This nervous system carries information to and from the central nervous system. An example of this nervous system is for example the command to move the hand to avoid heat, Nerve cells will send impulses to the central nervous system and the central nervous system will continue to stimulate the axons to intervene in the skeletal muscles so that the hands move.
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the fat rendered from beef carcasses used to make products such as soap and lubricants
The fat rendered from beef carcasses used to make products such as soap and lubricants is Tallow.
Tallow is simply beef fat that has been rendered (cooked down) to remove impurities. Though it felt out of style when vegetable oils came onto the scene, tallow is still a traditional fat that has been used for centuries.
Tallow is a source of conjugated linoleic acid (CLA), a fatty acid which studies have shown to help in increasing fat loss. It’s rich in vitamins A, D, E, and K, which are excellent for your skin.
It has a high smoke point and is more stable than processed vegetable oils. You can grow, harvest, and render tallow right in your kitchen. This makes it a more sustainable, local option for cooking fats.
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The correct question can be-
What is the food processing terminology that is used to describe fat rendered from beef carcasses used to make products such as soap and lubricants?
Which of the following is not a method of chromosomal sex determination that occurs in nature?
a. In birds, the mother's sex chromosomes determine the sex of the offspring.
b. In sea turtles, eggs laid in hot sand become females and eggs laid in cooler sand become males
c. In humans, the presence of a Y chromosome makes an individual male, even if he also possesses two X chromosomes.
d. In bees, the eggs that the queen allows to be fertilized become females and the eggs she doesn't fertilize become males.
e. All of the above are naturally occurring examples of sex determination.
All of the following options are a method of chromosomal sex determination occurring in nature: (a) In birds, the mother's sex chromosomes determine the sex of the offspring; (b) In sea turtles, eggs laid in hot sand become females and eggs laid in cooler sand become males; (c) In humans, the presence of a Y chromosome makes an individual male, even if he also possesses two X chromosomes; and, (d) In bees, the eggs that the queen allows to be fertilized become females and the eggs she doesn't fertilize become males.
Chromosomes are the most compactly packaged form of genetic material. It is comprised of DNA and histone proteins. The chromosome is the form of genetic material that gets transferred from parent cell to daughter cell during cell division.
X chromosomes belong to the category of sex chromosomes that give the male and female identity in humans and various other organisms. Human females posses two X chromosomes while posses only one along with one Y chromosome.
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g the type of mutation in which one nucleotide is replaced by another is a(n) mutation.
The type of mutation in which one nucleotide is replaced by another is a(n) Substitution mutation.
In genomics, substitution is a form of mutation in which one nucleotide is substituted with a different nucleotide. The phrase can also pertain to the substitution of one amino acid for another in a protein.
A substitution is a mutation that involves the exchange of one base for another. A replacement of this type could: alter a codon to one that encodes a distinct amino acid, resulting in a minor change in the protein generated.
Substitution mutations might be beneficial, detrimental, or ineffective. They are responsible for three types of point mutations: silent, missense, and nonsense mutations. A quiet mutation is one in which the protein's function is not altered. A missense mutation produces the incorrect protein.
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Which of the following kinds of organisms are best adapted to habitats that are frequently subject to unpredictable and severe environmental fluctuations?tropical rain forest
r-selected organisms
cryptic coloration
shallow root systems
The r-selected organisms are better suited for environments that frequently experience extreme and unpredictable environmental swings.
The idea of K- and r-selected species had been successfully applied to population research during the second half of the 20th century. The idea applies to a species' habitat, behavior, and reproductive techniques as well.
R-selected species, as opposed to K-selected species, have a lot of little offspring (hence their r designation). In unexpected or dynamic circumstances, this tactic is frequently used. R-selected animals do not provide long-term parental care, and the young are generally developed and self-sufficient upon birth. Marine animals like jellyfish and plants like dandelion are examples of r-selected species. Small dandelion seeds travel great distances in the wind, and several seeds are produced at once to make sure that at least part of them make it to a friendly environment. Given their little energy content, seeds have limited chance of surviving when they fall into hostile settings. Be aware that the amount of energy a seed has stored within it does not guarantee its survival.
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Match the geological feature to the tectonic process that is taking place where the feature is formed.
mid-ocean ridge
fault line
mountain
Two similar continental tectonic plates collide
and buckle.
arrowBoth
Two tectonic plates slip past one
another sideways.
arrowBoth
Two similar plates next to each other
on the sea floor spread apart.
arrowBoth
There are three types of boundaries: convergent (two plates collide), divergent (two plates separate), and transforming (two plates slide). Two similar continental tectonic plates collide and buckle ⇒ mountain. Two tectonic plates slip past one another sideways ⇒ fault line. Two similar plates next to each other on the sea floor spread apart ⇒ mid-ocean ridge
What are divergent, convergent, and transforming boundaries?I. Divergent:
This boundary occurs when two plates separate and molten material rises from the mantle creating a new crust.
The hot material creates a new seabed between the separating plates, expanding the sea bottom.
The mid-ocean ridge was created by divergent boundaries.
II. Convergent.
This is the collision area between two plates. Two plates collide. It might be
two oceanic plates, two continental plates, or one oceanic plate with a continental one.Mountains like Los Andes or The Himalayas are examples of the result of convergent boundaries.
III. Transforming.
The plates slide laterally with each other. The movement breaks the crust and originates pronounced fractures. No rocky material is either destroyed or formed.
When the plates move and produce a displacement of one transforming limits from side to side, earthquakes occur.
These boundaries are usually called faults, like San Andres fault.
In the exposed example,
Two similar continental tectonic plates collide and buckle ⇒ mountainTwo tectonic plates slip past one another sideways ⇒ fault lineTwo similar plates next to each other on the sea floor spread apart ⇒ mid-ocean ridgeYou can learn more about divergent, convergent, and transforming boundaries at
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hippogriffs can have black or gray fur. however, there is a hight rate of mutation from black alleles into gray alleles?
It is possible that there is a high rate of mutation from black alleles into gray alleles in hippogriffs, as mutations are a common occurrence in all species. Mutations in the alleles responsible for fur color could lead to a higher rate of gray alleles in the population, resulting in a higher number of hippogriffs with gray fur.
Mutations are random, and the rate of mutation from black to gray alleles in hippogriffs could be caused by a variety of factors. These could include:
environmental stressorsexposure to radiation or chemicalseven genetic mutations caused by inbreeding.Each of these factors can cause changes in the genetic makeup of an organism, which can lead to the development of new traits or the loss of existing traits.
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Which of the following sets of biomes is placed in order from lowest to highest average annual temperature?
Tundra, woodland/shrubland, subtropical desert
Subtropical desert, temperate seasonal forest, tropical rain forest
Tropical seasonal forest, boreal forest, woodland/shrubland
Tropical rain forest, temperate seasonal forest, tundra
From lowest to highest average yearly temperature, the following groups of biomes are listed. Subtropical desert, tundra, and woodland/shrubland.
How many biomes are there in the US?Six major biomes, including the tundra, coniferous forest, prairie, deciduous forest, desert, and tropical rainforest, are commonly used to describe North America.
What type of ecosystem or biome is the ocean?The marine biome, which makes up 75 percent of the planet's surface, is the largest biome in the world. Oceans, coral reefs, and estuaries are the three types of saltwater ecosystems that make up this biome. The Atlantic, Pacific, Indian, Arctic, and Southern oceans make up the marine biome's five major oceans.
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how are some protists able to live in air?
Some protists are able to live in air by possessing various adaptations that allow them to survive in this environment. For example, some protists have a protective coat of mucilage or a thick cell wall that prevents desiccation, or drying out, in the air. Others have developed the ability to move quickly, such as through the use of flagella or cilia, which allows them to move away from adverse conditions. Additionally, some protists are able to form spores, which are resistant structures that can survive in harsh environments, including in the air. These spores can later germinate and develop into new individuals when conditions become more favorable.
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which part of a neuron transmits an electrical signal to a target cell?
Axon is a part of a neuron that transmits an electrical signal to a target cell.
A neuron sending a sign (i.e., a presynaptic neuron) releases a chemical called a neurotransmitter, which binds to a receptor on the surface of the receiving (i.e., postsynaptic) neuron. Neurotransmitters are launched from presynaptic terminals, which may department to communicate with several postsynaptic neurons.
Nerve cells generate electric alerts that transmit information. even though neurons are not intrinsically correct conductors of electricity, they have got advanced problematic mechanisms for generating electrical alerts primarily based on the go with the flow of ions throughout their plasma membranes.
The dendrite is the part of the neuron that receives alerts. Dendrites are extensions of the neuron and they surround the cell frame, which is wherein the nucleus is positioned. Neurotransmitters are chemical messengers despatched between cells, and those messengers bind to precise sites at the dendrite.
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Describe the specifc contribution of each of the following researchers to the discovery of DNA structure:
DNA structure and function were discovered by Watson and Crick. Many people believe that English physicist Francis Crick and American scientist James Watson discovered DNA in the 1950s.
Francis Crick and James Watson worked together to identify the double helix structure of DNA. Francis Crick also made contributions to the development of the helical diffraction theory, which was helpful in comprehending the DNA structure. He also demonstrated how the three nucleotide bases of a single DNA strand may code for a specific amino acid.
Rosalind Franklin: She utilised x-ray diffraction to create images of DNA that Watson and Crick later used to determine the structure of the DNA molecule.
Francis Crick and James Watson worked together to identify the DNA structure.
The notion to examine DNA using X-ray crystallographic techniques originated with Maurice Wilkins.
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quizlwwr the release of thyrotropin-releasing hormone from the hypothalamus stimulates thyrotropin release from the pituitary, which further leads to synthesis and secretion of thyroid hormone from the thyroid gland. when the concentration of thyroid hormone in the blood turns off the release of thyrotropin from the pituitary, this is referred to as what type of feedback?
Following secretion at the median eminence, thyroid-stimulating hormone (TSH) goes to the anterior pituitary via the hypophyseal portal system where it binds to the TRH receptor and stimulates the release of prolactin from lactotropes and thyroid-stimulating hormone from thyrotropes.
Thyrotropin-releasing hormone (TRH) in the hypothalamus causes the anterior pituitary to secrete more thyroid-stimulating hormone (TSH). TSH then starts the thyroid gland's production of and release of thyroid hormone (TH). The principal regulator of thyroid gland growth and function is thyrotropin-releasing hormone (including the secretion of the thyroid hormones thyroxine and triiodothyronine). The cell bodies in the periventricular nucleus (PVN) of the hypothalamus produce the peptide hormone TRH.
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which organ regulates blood glucose levels by producing insulin
organ regulates blood glucose levels by producing insulin is pancreas. it maintains the blood sugar level in healthy status. along with insulin it also secretes some other hormones such as glucagon.
The human body is dependent on strict blood glucose level management to ensure appropriate physiological function. The brain, pancreas, liver, gut, adipose and muscle tissue, as well as other organs and tissues, emit a variety of hormones and neuropeptides that work together to achieve this. By secreting the blood sugar-lowering hormones glucagon and insulin, the pancreas serves as a vital actor in this network. However, changes in the way the hormones and peptides interact may result in metabolic illnesses like type 2 diabetic mellitus (T2DM), whose prevalence, comorbidities, and medical expenses take on a much larger scale.
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during a small animal examination, how does the veterinarian feel for enlargement of the internal organs and/or masses and fluid within the animal
during a small animal examination, the veterinarian feel for enlargement of the internal organs and/or masses and fluid within the animal by palpating the belly.
By palpating the belly, one can check for abdominal lumps, discomfort, or crepitus of the abdominal wall. The liver and kidneys can be felt by healthy people, but any other masses are abnormal.
Before palpating the abdomen, softly run your fingertips along the abdominal wall. This will show how the abdominal wall can creak or crepitate when there is gas or fluid in the subcutaneous tissues.
Place your non-dominant hand on your dominant hand and make a deeper palpation (112 to 2 inches [3.8 to 5 cm]) after lightly palpating the entire abdomen. However, refrain from performing deep palpations if your patient has a condition like splenomegaly, appendicitis, or an aneurysm, or if doing so hurts.
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I need help with this question please and thank you .
The answer for given question is Phenotypic Ratio - 1:1, and Genotypic ratio - 1:1
What is Punnett square?A Punnett square is a square plot used to predict the genotype for a given cross or breeding experiment.
Punnett square calculation for the given question:
Phenotypic Ratio is 1:1 i.e. 50% grey and 50% black.
Genotypic ratio is 1:1 i.e. the ratio of Gg to gg with reference to the above punnett square.
Genotypes: GG : 0 Gg : 2 gg : 2
Phenotypes: Black fur : 2 Grey fur : 2
Hence, Phenotypic Ratio - 1:1, Genotypic ratio - 1:1.
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what is the genus of plant that is easily identified by having no true leaves, dichotomous branching as well as lobed sporangia (usually yellow in color).
Psilotum is the genus of plant that is easily identified by having no true leaves, dichotomous branching as well as lobed sporangia (usually yellow in color).
Psilotum is a whisk fern genus. They are a kind of vascular plant. They lack real stems and true leaves; their stems contain the conducting tissues. They feature several branching stems and a three-lobed synangium. Synangia are sporangia that have merged and generate spores. They have rhizomes that generate rhizoids and aid in the anchoring of the psilophyte sporophyte.
Psilotum is referred to as a living fossil due to its similarity to an old line of primitive vascular plants reaching back 400 million years. It is a member of the plant division Psilophyta, the order Psilotales, and the family Psilotaceae.
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Good land and production practices can help increase greenhouse gas emissions. Please select the best answer from the choices providedTrueFalse
Good land and production practices cannot help increase greenhouse gas emissions.
Greenhouse gas emissions are the gases that trap heat in the atmosphere, thereby warming the planet. Greenhouse gas emissions are primarily caused by human activities such as burning fossil fuels, deforestation, and agriculture. Good land and production practices can actually help reduce greenhouse gas emissions.
For example, conservation agriculture practices, agroforestry, and sustainable land management practices can help sequester carbon in the soil, reducing the amount of carbon dioxide in the atmosphere.
Similarly, sustainable livestock management, reducing food waste, and increasing the use of renewable energy sources can also contribute to reducing greenhouse gas emissions.
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Juan received a class assignment to write about organisms that live in extreme environments. While doing research online, he found an image that showed microbial bodies thriving in hot springs. The organisms lacked a nucleus or defined organelles. Which organisms can he possibly find in such conditions?
Juan can find extremophiles such as bacteria, archaea, and some protists in hot springs in such conditions.
What is extremophiles?
Extremophiles are organisms that can survive in extreme environmental conditions such as extreme temperatures, high pressure, and high radiation. These organisms are typically found in habitats such as hydrothermal vents, deep-sea trenches, and other extreme environments. Extremophiles are able to survive due to their unique physiological adaptations that allow them to thrive in these extreme environments. Examples of these adaptations include the ability to resist extreme temperatures, produce anti-freeze proteins, and withstand high levels of radiation.They are also a valuable source of genetic information, playing a key role in our understanding of the molecular and cellular basis of life. In addition, extremophiles are being studied for their potential applications in biotechnology, such as the ability to produce novel enzymes and metabolic pathways.
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david and kelly are seeking help for infertility. under their physician's guidance, they decide to undergo a procedure in which kelly's eggs are combined in a laboratory dish with her husband's sperms. what is this procedure called?
In vitro fertilization is the name of this process. They choose to go through a procedure in which Kelly's eggs and her husband's sperms are joined in a lab dish, following the advice of their doctor.
Is a doctor just a doctor?The key distinction between physicians and surgeons is that the latter often have a wider background, although doctors specialized in a particular field of practice. Although it takes six years to become qualified, doctors typically need ten or more years to finish their study.
What does the term "physician's" mean?A doctor of medicine or doctor of osteopathic medicine, who has a medical degree, has practical experience, and is certified to practice medicine.
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Which features of the small intestine make it well suited to the absorption of nutrients?
The small intestine mucosa's lining is highly adapted to promote optimal nutrition absorption and digestion. Due to its enormous inner surface area, the small intestine is good for absorption
Villi, which enhance the surface area to aid in absorption, are formed by the lining's intense folding into microscopic finger-like projections. . This is created by the plicae circulares, which sprout numerous tiny, finger-like tissue structures. Additionally, each epithelial cell has projections that resemble fingers; these are called microvilli. The ileum is the small intestine's final and longest segment. Here, the blood flow is diminished and the walls of the small intestine start to weaken and constrict.
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What are the similarities and differences between chemiosmosis in mitochondria and chemiosmosis in chloroplasts?
Answer:Chemiosmosis in mitochondria and chloroplasts is similar because cell organelles possess an electron transport chain in their membrane that establishes a proton gradient. On the other hand, the difference is the energy source in the chemiosmosis of mitochondria and chloroplasts.
Explanation:Chemiosmosis in mitochondria and chloroplasts is similar because cell organelles possess an electron transport chain in their membrane that establishes a proton gradient. On the other hand, the difference is the energy source in the chemiosmosis of mitochondria and chloroplasts.
Label the steps of mitosis using the drop-down menus. Label A Label B Label C Label D The steps of mitosis are shown. In step A, the cell starts to break down structures. In step B, the chromosomes line up at the center. In step C, the chromatids separate from each other and are pulled to opposite ends of the cell. In step D, the cell is divided.
Answer:
Label A: Prophase
Label B: Metaphase
Label C: Anaphase
Label D: Telophase
In the Prophase, the chromatin in the cell starts to condense and form visible chromosomes, the nuclear envelope and nucleolus breaks down.
In the Metaphase, the chromosomes align at the center of the cell in the metaphase plate.
In the Anaphase, the sister chromatids separate from each other, and are pulled to opposite poles of the cell by the action of the spindle fibers.
In the Telophase, the chromosomes reach the opposite poles of the cell, and a new nuclear envelope forms around each set of chromosomes. The cell then divides into two identical daughter cells in the process of Cytokinesis.
Explanation:
Label A: Prophase
Label B: Metaphase
Label C: Anaphase
Label D: Telophase
In the Prophase, the chromatin in the cell starts to condense and form visible chromosomes, the nuclear envelope and nucleolus breaks down.
In the Metaphase, the chromosomes align at the center of the cell in the metaphase plate.
In the Anaphase, the sister chromatids separate from each other, and are pulled to opposite poles of the cell by the action of the spindle fibers.
In the Telophase, the chromosomes reach the opposite poles of the cell, and a new nuclear envelope forms around each set of chromosomes. The cell then divides into two identical daughter cells in the process of Cytokinesis.
Answer:
Label A: Prophase
Label B: Metaphase
Label C: Anaphase
Label D: Telophase
A solution of enzyme A has a pH of 8. Based on the graph, which pH change would result in higher enzyme activity
Based on the graph, a pH change to a lower value (closer to the enzyme's optimum pH) would result in higher enzyme activity. Enzymes generally have an optimum pH at which they function most efficiently. The pH of the solution is 8, but the optimum pH for enzyme A is at 7. So, a decrease in the pH from 8 to 7 would result in higher enzyme activity.
Which birds beak is best adapted to get nourishment from the nectar of flowers?
A hummingbird's long, narrow beak allows it to easily dip into blooms to drink nectar (a sugary fluid the hummingbird uses for food).
What adaptations have been made to the nectar-eating habits of birds?The long, slender beaks of hummingbirds enable them to delve inside blossoms for nectar. Nevertheless, because flowers come in a variety of sizes and shapes, so do hummingbirds' beaks. Others are slender, some are long, some are curved, and some are straight.
Why is their name "hummingbirds"?The majority of hummingbirds flap their wings between 60 and 80 times per second. Because of the buzzing sound that their wings create while they fly, hummingbirds get their name. Due to their birds' adaptable shoulder joints,
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Which of these pathogens can NOT be transmitted congenitally or from mother to baby during childbirth?
Leptospira interrogans
Chlamydia trachomatis
human herpesvirus 2
Treponema pallidum
Congenital transmission of Leptospira interrogan from mother to fetus during birthing is not possible.
Obligate aerobic spirochaete Leptospira interrogan has spiral and hooked ends and is fashioned like a corkscrew. Warmer tropical areas are where L. interrogan is most frequently found. The bacteria can survive in the soil or water for weeks to months. One of the spirochaete phylum genera that causes serious mammalian illnesses is Leptospira. Some domestic and wild animals, especially dogs kept as pets, are pathogenic to this species. Infection can result in flu-like symptoms as well as kidney and liver damage in humans when it enters through skin abrasions.
Gram-negative, tightly wound, motile spirochetes with two periplasmic flagella, L. interrogan cells are tightly wound spirochetes. At each end of the bacterium, a flagellum is attached. The cells have a corkscrew-shaped body with spiral or hooked ends, and they are long—between 6 and 20 m—and thin—about 0.15 m. The name "interrogans" derives from the way the hooked ends frequently resemble a question mark. For the bacteria to move and live in particular host cells, the periplasmic flagella are essential. The leptospires exhibit both translational and non-translational movement, each of which is distinct.
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what is cell explain it briefly
Answer:
cell is smallest unit of life . every living things are made from cells and cells are microscopic so they are invisible to eye
if you know the protien a cell makes, how could you detremine the dna code that coded for the protien
If we know the sequence of the amino acids in a protein then the particular DNA code can be obtained from it.
due to the process of translation and transcription DNA is changed first into R N A and then RNA is changed into protein. the protein consists of different amino acids which are linked to each other by different peptide bonds.
If the Amino acid sequence can be identified then we can easily find out the RNA sequence.
Then the RNA sequence can be changed into DNA sequence by using RNA dependent DNA polymerase enzyme.
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cystic fibrosis is a recessive disease that causes the production of abnormally thick, life-threatening mucus secretions in the lungs. what is the genotype of a person with cystic fibrosis: cc, cc, or cc? explain your choice.
A recessive condition called cystic fibrosis results in the creation of tissues that are excessively thick. Due to the recessive nature of cystic fibrosis, the genotype will indeed be cc.
What is genotype, for instance?The type of variance present at a specific site in the genome is scored by a genotype. Symbols can be used to symbolize it. For illustration, BB, Bb, and bb might be used to denote a certain gene variant. There are three different genotype types: homozygous dominant (PP), homozygous recessive (PP), and hetero (Pp).
Which two genotypes are predominant?Heterozygous and homozygous genomes are the two primary subtypes. An organism inherits two distinct gene variants if they have a heterozygous genotype. whether a gene in an organism is homozygous.
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For a common bacterial gene with a promoter, match each mutation to its most likely effect. (-36 down, -11 up, -20, +1)
a. Increased rate of transcription
b. Decreased rate of transcription
c. Altered RNA translation
d. No effect on transcription
Answer:
a. -11 up mutation
b. -36 down mutation
c. -----
d. + 1 mutation, -20 mutation
Explanation:
