The origins of replication along a chromosome tend to start at sites with stretches of a and t nucleotides because-
The positions at which the DNA helix is first opened are referred to as replication origins (parent 5-29). In easy cells like those of micro organism or yeast, origins are designated with the aid of DNA sequences numerous hundred nucleotide pairs in length. This DNA consists of brief sequences that appeal to initiator proteins, in addition to stretches of DNA which can be particularly smooth to open. We noticed in discern four-4 that an A-T base pair is held together by fewer hydrogen bonds than a G-C base pair. consequently, DNA wealthy in A-T base pairs is extraordinarily clean to drag aside, and areas of DNA enriched in A-T pairs are generally found at replication origins.In order to form a replication bubble, the DNA has to be unbound. DNA contains 4 nucleotides A, T, C, and C. A and T basepairs via 2 hydrogen bonds and C and G base pairs with 3 hydrogen bonds, so basepairing between C and G is stronger compared to Basepairing between A and T, so it is easy to break hydrogen bonds between A and T compared to G and C so origin of replication contains A and T nucleotides compared to C and C nucleotidesTo know more about Origin of replication visit : https://brainly.com/question/13685752
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Biology: The purpose of a wetland is to decrease the impact of farm animal waste and nitrogen- and phosphorus-rich fertilizers on the nutrient cycles in water ecosystems. When constructing a wetland, what factors should farmers consider?
In the wetland, ammonia is absorbed by plants or converted to nitrogen gas through volatilization. Nitrification can also occur changing ammonia into nitrites and nitrates. The nitrate form of nitrogen is more readily removed from surface water by wetland plants than the ammonium form.
Wetlands are able to remove nitrogen and phosphorus through a combination of physical, chemical, and biological processes. These naturally occurring processes adsorb/absorb, transform, sequester, and remove the nutrients and other chemicals as water slowly flows through the wetland.
On average, created and restored wetlands significantly reduce the transport of TN and TP in treated wastewater and urban and agricultural runoff, and may thus be effective in efforts to counteract eutrophication.
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Ammonia in the marsh is either taken up by plants or volatilized into nitrogen gas. Ammonia may undergo nitrification, which results in the formation of nitrites and nitrates. Wetland plants are better at removing the nitrate form of nitrogen from surface water than the ammonium form.
Physical, chemical, and biological processes work together in wetlands to remove nitrogen and phosphorus from the environment. As water slowly moves through the marsh, these naturally occurring processes adsorb/absorb, convert, sequester, and eliminate the nutrients and other contaminants.
In order to effectively combat eutrophication, built and regenerated wetlands considerably restrict the movement of TN and TP in treated wastewater as well as in urban and agricultural runoff.
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What organelles would a nonphotosynthesis alga need to obtain in order to carry out photosynthesis?
chloroplast organelles would a nonphotosynthesis alga need to obtain in order to carry out photosynthesis
What organelles are required for photosynthesis in an algal cell?Photosynthesis takes place in the chloroplast, a specialised intracellular organelle found in plants and algae, which emerged considerably later. During the day, photosynthesis is carried out by chloroplasts. The photosynthetic cells employ the immediate results of photosynthesis, NADPH and ATP, to create a variety of chemical compounds.
Non-photosynthetic species must rely solely on photosynthesis to obtain the energy they require to exist, which highlights the significance of photosynthesis to them. To continue to exist, all living things must use energy, which ultimately originates from the sun.
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If your doctor told you that you are suffering from a dysfunction in a ______, you would know the relevant structure was in the peripheral nervous system.
If your doctor told you that you are suffering from a dysfunction in a Tract , you would know the relevant structure was in the central nervous system.
Motor neurons in your peripheral nervous system are used by your central nervous system's hungry brain to activate and control the muscles in your arm and hand. Your brain interprets the information from your central nervous system as you take up the fork, allowing it to continue directing the fork to your mouth.
Almost every element of our health and wellbeing is influenced by the neurological system. It directs simple processes like waking up, automatic ones like breathing, and intricate ones like thinking, reading, remembering, and experiencing emotions. The development of the brain is governed by the nervous system.
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Which discovery did scientists make at mid-ocean ridges that caused them to conclude that new rock was being
formed by molten material?
O magnetic banding
rocks with similar characteristics
Scientists make at mid-ocean ridges that caused them to conclude that new rock was being formed by molten material pillow-shaped rocks.
Why was the discovery of mid-ocean ridges important?Wegener's theory was able to be expanded to include the movement of oceanic crust in addition to the movement of continents thanks to the discovery of mid-ocean ridges and the process of seafloor spreading.
How were mid-ocean ridges discovered?A mid-ocean ridge was not even known to exist until the 1950s, when it was discovered through surveys of the ocean floor carried out by research ships. This is because it is submerged at very deep depths in the ocean.
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I understand question looking for :
Which discovery did scientists make at mid-ocean ridges that caused them to conclude that new rock was being formed by molten material?
magnetic banding
pillow-shaped rocks
older rocks farther from the ridge
rocks with similar characteristics
How does water having high specific heat capacity and high heat of vaporization help life on earth?.
Having high specific heat capacity and high heat of vaporization helps to sustain life on Earth as heat is absorbed by the water and released slowly, which helps to sustain life.
Water has a specific heat of vaporization. Around 40,000 Joules of energy are required for vaporizing one mole of water. It is due to this heat of vaporization, that water has the ability to store excess heat and release it slowly. Such an effect causes the Earth to tolerate the temperature changes caused by heat from the Sun.
The high specific heat capacity of water helps life on Earth by maintaining ocean temperatures so that aquatic life can survive. As a major part of the Earth is water, hence the specific heat capacity of water absorbs sunlight hence protecting the Earth from high-temperature changes.
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Explain how free fatty acid mobilization from the adipose cell decreases during maximal work in spite of the cell being stimulated by all the hormones to break down triglycerides.
Here are the reasons how free fatty acid mobilization from the adipose cell decreases during maximal work in spite of the cell being stimulated by all the hormones to break down triglycerides:
1) The higher H+ concentration, which may inhibit hormone sensitive lipase.
2) The high levels of lactate during heavy exercise.
3) Inadequate blood flow to adipose tissue
4) Insufficient albumin needed to transport the FFA in the plasma
It could be brought on by increased H+ levels, which could inhibit HSL, high lactate levels during vigorous activity, which encourage the re-synthesis of triglycerides, appropriate blood supply to the adipose tissue, or a lack of albumin, which is required to carry FFA in the plasma.
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Which statement illustrates bias in scientific research?
When one result or response is "systematically incorporated into sampling or testing by selecting or promoting one answer above others," bias is present in the study.
Bias can appear at any stage of the research process, including study design, data collecting, data analysis, and publishing.
How is prejudice impacted by research?If the researcher allows his prejudice to skew the measurements, observations, or their interpretation, bias can harm the research. It is unfair to all of the students when professors assess some students more or less favourably than others in their courses due to teacher prejudice.
Encourage critical thinking about the working hypothesis and give it thorough consideration. Make certain that all interested parties review the source data. Do not rely on the analysis and summarization of a single person. Create tests to validate your theory.
Research bias, also known as experimenter bias, is the process through which the scientists doing the research skew the findings to support a certain hypothesis.
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Why was disc E soaked in water?
can somebody help me with this?
Answer:
Growth and development
Explanation:
The diagrams show the stages of growth in the human offsprings
This epithelial tissue forms the kidney tubules, and the ducts and secretory portions of small glands.
Simple cuboidal epithelia forms the kidney tubules, and the ducts and secretory portions of small glands.
What are epithelial cells?Epithelial cells are the cells that cover the inside and outside of your body's surfaces.They are responsible for the formation of our skin, blood vessels, and organs, including your urinary tract.They also make up your skin's outer layer (epidermis), the lining of your intestines, the lining of your respiratory tract, the lining of your abdominal cavity, and your sweat glands.Epithelial cells can have different shapes depending on the type of tissue they are found in and the functions they perform, and they can be arranged in a single layer or multiple layers. The most common site for cancer development is epithelial tissue. Carcinomas develop from epithelial tissue and account for up to 90% of all human cancers.To know more about epithelial cells:
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In the interaction cycle, what human-related task occurs immediately prior to and provides context that helps bridge the gulf of evaluation used to understand objects, properties and events?.
The human-related job comes first and provides context that helps close the assessment gap utilised to comprehend how things, such properties and events, are being perceived and interpreted.
Successful evaluation requires the perception of the system-status signal as well as the interpretation of what it entails. Users must complete these associated actions in order to be allowed to cross this gap. Users are able to comprehend the system's state once they complete this assignment. Evaluation is the modern phrase for that.
A human resources manager, also referred to as a labour relations manager, develops employee benefit plans, advocates for employees, and fosters workplace diversity.
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Certain types of bacteria living in soil use ammonium ions from nitro gen fixation or the waste of decomposers to perform ___________
Answer: Rhizobium or Bradyrhizobium
Explanation:
If an individual with type o blood mates with an individual with type ab blood, what are the possible blood phenotypes of their offspring?.
In humans, a cleft chin is dominant and no-cleft is recessive. What will the generations look like? assume that mendel’s method of crossing two true breeding parents with opposite traits is followed. Check all that apply.
Here are what the generations look like assuming that Mendel’s method of crossing two true breeding parents with opposite traits is followed:
The F1 generation will have all cleft chinsThe P generation and F2 generation will have cleft chins and no-cleft chins.This inquiry suggests that a gene that codes for cleft presence is implicated. Cleft chin allele (C) is dominant, whereas cleft-free allele (c) is recessive.
If two genuine breeding parents, such as CC (cleft chin) cc (no cleft chin), are crossed (see attached image). The Cc genotype is present in the F1 generation of children.
The following progeny are created when Cc Cc is crossed to create the F2 generation: CC, Cc, Cc, and cc.
CC's chin will be cleft.CC will have a cleft chincc has no cleftHere is another question with an answer similar to this about allele dominance: brainly.com/question/290081
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Question correction:
In humans, a cleft chin is dominant and no-cleft is recessive. What will the generations look like? Assume that Mendel’s method of crossing two true breeding parents with opposite traits is followed. Check all that apply.
The P generation, F1 generation, and F2 generation will have all cleft chins.The P generation, F1 generation, and F2 generation will have all no-cleft chins.The P generation and F1 generation will have all cleft chins.The F1 generation will have all cleft chins.The P generation and F2 generation will have all no-cleft chins.The P generation and F2 generation will have cleft chins and no-cleft chins.The P generation, F1 generation, and F2 generation will have cleft chins and no-cleft chins.What drives motility in sporozoa?
a. flagella
b. pseudopodia
c. cilia
d. sporozoa are non-motile
Sporozoa are non motile organisms.
What do you mean by sporozoa and why they are non motile?Sporozoa are parasitic non motile protozoa that have a complex life cycle usually involving both sexual and asexual generation often in different hosts and includes important pathogens. Sporozoans do not have flagella or cillia for locomotion . They depend on twisting and bending on move.
Sporozoa do not have flagella or cillia for locomotion. So, they are non motile .
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The hypothesis that intelligence is in part inherited is best supported by the fact that the iq correlation for.
PairsPairs of identical twins is greater than for pairs of faternal twins.
What evidence exists for a genetic components to an Individual IQ?According to studies, identical twins may have more similar IQ scores than fraternal twins. The IQs of siblings who grew up together in the same environment are more similar than those of adopted children who lived with their parents.
Faternal twins may not have same sex appearance but half their genomes just like an siblings. In contrast, identical twins result from the fertilization of single sperm ,with fertilized efg then splitting into two.
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If p. caudatum is roughly twice as large as p. aurelia, how did the total number of cells compare after 22 days of separate growth?
After 22 days of separate growth, the two species had approximately the same volume (just over 200 micrometers). If P. caudatum was twice as large, then it took about half as many cells as P. aurelia to make up the same volume.
The experiment here clearly indicates that when each species are growth seperately in separate media they show very well growing potential and the cell volume.
The genus Paramecium of the phylum Ciliophora contains the unicellular organisms known as Paramecium aurelia. They have cilia all throughout their bodies, which aid in locomotion and feeding. Paramecium has three ways of reproducing: asexually, sexually, and by endomixis.P. caudatum has two contractile vacuoles, which function to expel extra water taken in from the environment and control the body's water content.To know more about P. caudatum visit:
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If ammonia is used as an energy and electron source by a bacterium, that bacterium would be considered a ___.
If a bacterium uses ammonia as an energy as well as electron source, it is classified as lithotrophic chemotrophic.
Descriptive terms for lithotrophic chemotrophic:Humans, fungi, and also many prokaryotes are chemotrophs that get their energy from organic chemicals. Lithotrophs are chemotrophs that obtain energy from inorganic substances such as hydrogen sulfide (H2S) as well as reduced iron. Lithography is a microbiological phenomenon that is unique in the globe.
What is the difference between chemoautotrophs and chemolithotrophs?Chemotrophs are creatures that get energy from their surroundings by oxidizing electron sources. These compounds might well be organic (chemoorganotrophs) or inorganic (chemoorganotrophs) (chemolithotrophs). The term chemotroph is used in contrast to phototroph, which uses solar energy.
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Metformin alleviates human cellular aging by upregulating the endoplasmic reticulum glutathione peroxidase 7
Metformin is thought to activate Nrf-2, resulting in increased production of endoplasmic reticulum glutathione peroxidase x7.
A modest dose of metformin, according to one research, enhances endoplasmic reticulum localized glutathione peroxidase 7. (GPx7). GP7 expression levels are lowered in senescent human cells, and GPx7 inactivation promotes early cellular senescence. Metformin also increases the nuclear concentration of nuclear factor erythroid 2 related factor 2 (Nrf2), which binds to antioxidant response sites in the GPX7 gene promoter and increases its expression.
Metformin has also been shown to be effective in lowering DNA damage and promoting DNA repair. Metformin preserves nuclear and mitochondrial DNA and enhances DNA repair by neutralizing free radicals. DNA damage is also thought to be a cause of aging in human cells.
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What type of training must you take before working with materials known to cause disease?
Answer:
Biosafety Training
Explanation:
Which of these is a result of possibilsm?
A. Popularity of lightweight clothing in Cuba.
B. Elevated housing in flood zones along the coast.
C. Community gardens in Death Valley.
D. Affinity for outdoor activities in New Zealand.
E. Lower rates of vegetarianism.
According to Arrhenius, an acid produces H+ ions when dissolved in water?
Explanation:
According to Arrhenius, the acids are the hydrogen-containing compounds which give H+ ions or protons on dissociation in water and bases are the hydroxide compounds which give OH− ions on dissociation in water.
Based on the passage, which factor directly limits the number of seals in a population?
A.
The amount of ocean water
B.
The number of polar bears
C.
The amount of dry land
D.
The amount of sunlight
Answer:
The amount of ocean water
Amino acid is to a protein as
1. Fat is to a lipid
2. DNA is to RNA
3. Sugar is to fat
4. Nucleotide is to nucleic acid
Answer: A) Fat is to a lipid.
Explanation:
In a nucleic acid polymer, the hydrogen bonds that help to hold regions of double-strandedness together occur between what parts of the nucleotide monomers?.
Answer:
Between opposite nitrogenous base in the complementary strand[tex].[/tex]
Explanation:
The hydrogen bonds, hydrophobic interaction and stacking found in the DNA helps in providing stability to the structure of DNA. Hydrogen bonds are found between the opposite nitrogenous bases of two complementary strands. There are two hydrogen bonds between A and T and three between C and G.
explain why transfusion with distilled water is not recommended for a dehydrated patient
Since the water will be going into the blood, it needs to be isotonic to the blood. Blood cells contain salts, so if pure water were transfused into the blood cells, all the water would go into the cells and explode. This is why transfusions use a saline solution.
Vasoconstriction is caused by ______ stimulation of vascular smooth muscle and ______ stimulation of vascular smooth muscle causes vasodilation.
Vasoconstriction is caused by sympathetic stimulation of vascular smooth muscle and parasympathetic stimulation of vascular smooth muscle causes vasodilation.
The narrowing (constriction) of blood arteries by tiny muscles in their walls is known as vasoconstriction. Blood flow is delayed or halted as blood vessels close. Vasoconstriction can range from mild to severe. It might be brought on by a sickness, medication, or psychological issues.Norepinephrine's interaction with postsynaptic -adrenergic receptors is the main mechanism by which sympathetic innervation of the peripheral vasculature promotes vasoconstriction. The majority of the body's blood arteries lack parasympathetic innervation. However, salivary glands, gastrointestinal glands, and vaginal erectile tissue are all innervated by parasympathetic neurons, which results in vasodilation. The parasympathetic division causes the body to go into "rest or digest" mode, typically lowering blood pressure and heart rate.Blood arteries often expand in response to parasympathetic stimulation, increasing blood flow but decreasing pressure.learn more about Vasoconstriction here: https://brainly.com/question/4359984
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What are gametes?
Eggs and sperm
Linking amino acids
Identical chromosome pairs
Fertilized eggs
Complete the following sentence.
should be performed in order to reduce aggression and accidental breeding.
A special technique known as castration should be performed in order to reduce aggression and accidental breeding in animals.
What does animal castration mean?The expression animal castration makes reference to a procedure that eliminated reproductive features in a given animal, which may reduce aggressive behaviors and completely eradicate mating and therefore also the generation of offspring by sexual reproduction.
In conclusion, a special technique known as castration should be performed in order to reduce aggression and accidental breeding in animals.
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The process of using each strand of a dna molecule as a template to form a new strand is called ________.
Answer:
DNA replication
Explanation:
