The first repair of mistakes during dna replication is made by.
Answers
During proofreading, DNA polymerase enzymes recognize this and replace the incorrectly inserted nucleotide so that replication can continue. Proofreading fixes about 99% of these types of errors, but that's still not good enough for normal cell functioning.
The repair of mistakes during DNA replication is done by DNA polymerase enzymes. The DNA polymerase enzymes have the capability to detect errors and fix them. It recognizes the incorrect nucleotides and removes them. After removing them, the correct nucleotides are inserted into the position. This process is called proofreading, and it helps maintain the integrity and stability of DNA.
The first repair of mistakes during DNA replication is made by DNA polymerase enzymes. The DNA polymerase enzymes can detect the errors made during DNA replication. They can fix the errors by removing the incorrect nucleotides and replacing them with the correct ones. This process is called proofreading and helps maintain the integrity and stability of DNA.
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Related Questions
transfer of pollen from anther to stigma of the same flower or flowers on the same plant is known as
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The transfer of pollen from the anther to the stigma of the same flower or flowers on the same plant is called self-pollination. Self-pollination can occur through various mechanisms, including gravity, wind, or physical contact.
In some cases, plants have evolved specialized structures that help facilitate self-pollination, such as flowers with anthers positioned close to the stigma or flowers that remain closed and self-pollinate before opening.
Self-pollination can be advantageous for plants in certain situations, as it ensures that reproductive success is not dependent on outside factors such as pollinator availability. However, it can also lead to a lack of genetic diversity, which can be detrimental to the long-term survival of a species. Therefore, many plants have evolved mechanisms to prevent self-pollination and promote cross-pollination with other plants.
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I really need help, can someone answer for me?
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Answer:
there would be more food for the foxes so their population would increase
So it's the first one
Which of the following facts is the best evidence that humans and salamanders had a common ancestor?
A) Both species eat meat
B) Both species have pharyngeal arches and slits when they are embryos
C) Both species can swim
D) Both species have skin
Answers
Answer:
B
Explanation:
Look up an image of a human embryo v. a salamander embryo if you look carefully you'll see the arches and slits.
Neurotransmitters are released by the presynaptic neuron whenever {{c1::action potenial arrives, allowing Ca2+ into the presynaptic neuron}}
Answers
Neurotransmitters are released by the presynaptic neuron whenever Ca2+ ions into the presynaptic neuron.
Neurotransmitters are essential chemicals that facilitate communication between neurons in the nervous system. When an action potential arrives at the presynaptic neuron, it triggers the opening of voltage-gated calcium channels. This allows an influx of Ca2+ ions into the presynaptic neuron. The increased calcium concentration inside the neuron activates a series of molecular events, which eventually lead to the fusion of neurotransmitter-containing vesicles with the presynaptic membrane.
As the vesicles fuse, neurotransmitters are released into the synaptic cleft, the small gap between the presynaptic and postsynaptic neurons. The released neurotransmitters then bind to specific receptor proteins on the postsynaptic neuron's membrane.
In summary, neurotransmitters play a critical role in neural communication by enabling the transfer of information between neurons. The release of neurotransmitters is triggered by the arrival of an action potential at the presynaptic neuron, which causes an influx of Ca2+ ions. This event leads to the fusion of neurotransmitter-containing vesicles with the presynaptic membrane and the subsequent release of neurotransmitters into the synaptic cleft, where they interact with receptors on the postsynaptic neuron.
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Neurotransmitters are released by the presynaptic neuron whenever _________
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________ is a postexercise snack that has been shows to increase muscle glycogen stores and protein synthesis. a. Cheese b. Almonds c. Chocolate milk d. Bananas e. Whole-grain tortillas
Answers
The correct answer is Option c (Chocolate milk).
What is a good post-workout snack?When you work out, your muscles use their glycogen energy stores. Some of the muscle proteins also get damaged, especially during strength workouts. Therefore, after workout it is important to consume protein in combination with moderate carbohydrate.A diet rich in carbohydrates increases endurance performance because of the extra store of carbohydrates in the muscles and liver, called glycogen.Chocolate milk has everything you need after a workout—carbs, protein, fluids and electrolytes. Low-fat chocolate milk contains a combination of carbohydrates and protein which is just right for refueling weary muscles.Cottage cheese is an excellent source of both whey protein and casein protein which replenish muscles.Almonds provide protein, fiber and healthy fats.Bananas reduce inflammation and replenish muscle glycogen stores, ultimately promoting quicker recovery.Whole-grain tortillas provide fiber and protein.Learn more about post-exercise snacks here:
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Assume there are nerve fibers that travel from the brain to the motor neurons in the spinal cord involved in the patellar reflex arc. some of these nerve tracts stiumlate the spinal neurons while other inhibit the same neurons. Hypothesize on the mechanism that would result in the delta mV differences observed between the reflexes with and without reinforcement.
Answers
It is possible that the observed differences in the delta mV between the reflexes with and without reinforcement could be due to changes in the balance of excitatory and inhibitory inputs to the motor neurons, which could result from the activation of different sets of nerve fibers that either stimulate or inhibit the same spinal neurons.
The patellar reflex, also known as the knee reflex, is a monosynaptic reflex that involves a sensory neuron and a motor neuron in the spinal cord.
The sensory neuron carries information from the muscle spindle in the quadriceps muscle to the spinal cord, where it synapses with the motor neuron that innervates the quadriceps muscle.
When the sensory neuron is stimulated, it causes the motor neuron to fire, which leads to the contraction of the quadriceps muscle and the extension of the knee joint.
In the scenario described, where there are nerve fibers that both stimulate and inhibit the same spinal neurons involved in the patellar reflex, it is possible that the delta mV differences observed between the reflexes with and without reinforcement could be due to the balance of excitatory and inhibitory inputs to the motor neurons.
When the sensory neuron is stimulated, it releases neurotransmitters that can either excite or inhibit the motor neuron, depending on the type of neurotransmitter and the type of receptor on the motor neuron.
If the balance of excitatory inputs is greater than the balance of inhibitory inputs, the motor neuron will fire more frequently, leading to a stronger muscle contraction and a larger delta mV in the electromyogram (EMG) recording.
Conversely, if the balance of inhibitory inputs is greater than the balance of excitatory inputs, the motor neuron will fire less frequently, leading to a weaker muscle contraction and a smaller delta mV in the EMG recording.
Further experimental studies would be needed to confirm this hypothesis and identify the specific mechanisms involved in the patellar reflex with and without reinforcement.
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What is photosynthesis used by
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Answer:
Plants are autotrophs, which means they produce their own food. They use the process of photosynthesis to transform water, sunlight, and carbon dioxide into oxygen, and simple sugars that the plant uses as fuel. These primary producers form the base of an ecosystem and fuel the next trophic levels.
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Which nutrient provides the starting material for making many of the hormones in our bodies?
Answers
The lipids nutrient provides the starting material for making many of the hormones in our bodies.
Lipids are an essential nutrient for our bodies, providing the starting material for many of the hormones that regulate our metabolism, growth and development. Without lipids, we would not be able to produce the testosterone that helps us build muscle mass, the estrogen that helps us develop and maintain reproductive health, or the cortisol that helps us manage stress.
Lipids are also a major source of energy for our cells, and are essential for cellular structure and function. In fact, every cell in our body is surrounded by a lipid bilayer that helps to protect it from the outside world.
While we need lipids for our bodies to function properly, it's important to remember that not all lipids are created equal. saturated fats, for example, have been linked to heart disease and other chronic health conditions, while unsaturated fats are considered to be much healthier.
So, if you're looking to improve your health, it's important to choose the right types of lipids. Eat plenty of fruits, vegetables, and whole grains, and limit your intake of saturated and Trans fats. Your body will thank you for it!
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How should you punctuate a NOVEL title?
1. Put quotation marks around the title.
2. Capitalize every letter of the title.
3. Underline or italicize the title.
4. Put a comma in the title.
Answers
which structure is specialized for the detection of the stimulus that triggers a phototaxic response in certain protists?
Answers
The specialized structure for the detection of the stimulus that triggers a phototaxic response in certain protists is called: eyespot.
Phototaxis is the movement of an organism by the detection of light. This process is particularly useful for the autotrophic organisms who can adjust themselves according to the most efficient light in order to perform photosynthesis.
Eyespot is an organelle particular present in various protists, involved in the function of photoreception. These are the small organelles with large amount of carotenoid pigment which helps in phototaxis. The eyespot can detect the intensity as well as the direction of incoming light.
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why do different countries use different poverty lines ?
Answers
Answer:
hope it helps
Explanation:
Different countries have different poverty lines because the cost of living varies form country to country.In some countries the income required to live a decent life(above poverty line)is lower than the income required to live a decent life in another country.
A genetic tendency toward a fearless and uninhibited life is most characteristic of those with:
Answers
A genetic tendency toward a fearless and uninhibited life is most characteristic of those with psychopathic tendencies or those who possess specific variants in genes.
A genetic tendency toward a fearless and uninhibited life is most characteristic of those with psychopathic tendencies or those who possess specific variants in genes. Fearlessness or low fear is believed to be a fundamental trait of psychopathy. Psychopathy is a condition that is characterized by a lack of guilt or remorse, superficial charm, and manipulative behavior.According to the psychopathy theory, individuals who exhibit psychopathic tendencies are less influenced by punishment, pain, and anxiety, rendering them more fearless and hence being able to take greater risks. While psychopathy is a significant factor, other genetic variants could contribute to a fearless life, as well.In addition, a genetic tendency toward a fearless and uninhibited life is sometimes referred to as high sensation seeking, a character trait that refers to a person's desire for thrilling and risky experiences. Individuals with high sensation seeking scores are more likely to participate in activities such as extreme sports or drug experimentation than those with low sensation seeking scores. As a result, sensation seeking has been associated with novelty seeking, impulsivity, and greater-than-average risk-taking behaviors.In conclusion, a genetic tendency toward a fearless and uninhibited life is most characteristic of individuals with psychopathic tendencies or specific variants in genes. It's important to note, however, that this is a complex topic, and more research is required to gain a better understanding of the precise role genetics play in these personality traits.
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Repair of damaged DNA, in some instances and mechanisms, might be viewed as a race between an endonuclease and Group of answer choices helicase. primase. methylase. DNA ligase. DNA polymerase.
Answers
Repair of damaged DNA, in some instances and mechanisms, might be viewed as a race between an endonuclease and methylase.
What is DNA?This is referred to as deoxyribonucleic acid and it contains the genetic component of organisms.
When it is damaged, it can be repaired through the endonuclease cleavage site which is protected by methylase which brings about synergy.
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What role do endocytosis and exocytosis play in the transfer of an action potential (electrical impulse) from one neuron to another?
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Answer:
Endocytosis and exocytosis are cellular processes that play a role in the transfer of an action potential (electrical impulse) from one neuron to another.
Endocytosis is the process by which a neuron takes in molecules or particles from the extracellular environment by forming a vesicle around them. In the context of the transfer of an action potential, endocytosis is important for the reuptake of neurotransmitters, which are the chemical messengers that transmit signals between neurons. By reuptaking neurotransmitters, the neuron can regulate the amount of neurotransmitters in the synaptic cleft, which is the small gap between the neurons where neurotransmitters are released.
Exocytosis is the process by which a neuron releases molecules or particles into the extracellular environment by fusing a vesicle with the plasma membrane. In the context of the transfer of an action potential, exocytosis is important for the release of neurotransmitters, which are the chemical messengers that transmit signals between neurons. When an action potential reaches the axon terminal of a neuron, it triggers the exocytosis of vesicles containing neurotransmitters, which then bind to receptors on the next neuron, generating a new action potential.
In summary, endocytosis and exocytosis play a role in the transfer of an action potential by regulating the amount of neurotransmitters in the synaptic cleft, and releasing them in response to action potential respectively.
PLEASE ANSWER ALL
question 3
Predation (hunting) is a positive benefit to the population of prey organisms because it tends to keep:
A. population low
B. Population high
___________________
question 4
An animal that eats only plants is a:
A. primary consumer
B. secondary consumer
C. tertiary consumer
D. primary consumer
____________________
question 5
An example of a producer is:
A. fungus
B. caterpillar
C. bird
D. water lily
_____________________
question 6
Which of the following is an example of an ecosystem?:
A. air, water, grass, mouse, and badgers
B. air, water, sunlight, soil
C. hawks, mouse, badgers, and eagles
D. grass, trees, bushes, and flowers
____________________
question 7
All the following are examples of limiting factors for a population EXCEPT:
A. space
B. food
C. time
D. weather
______________________
question 8
An example of a biotic resource in a forest ecosystem is:
A. waterfall
B. tree
C. cliff
D. rock
_____________________
question 9
The source of energy for almost all life on earth is:
A. sunlight
B. fungi
C. water
D. animals
______________________
question 10
In an energy pyramid , the lowest level has:
A. less energy than the top level
B. less energy than the second level
C. more energy than the top level
D. the same amount of energy is available to a consumer
Answers
Question 4: A
Question 5: D
Question 6: B
Question 7: C
Question 8: B
Question 9: A
Question 10:C
Identify what Anton Van Leeuwenhoek is often referred to as.
Answers
Answer:
the Father of Microbiology!
Explanation:
If your talking about Antonie Van Leeuwenhoek then the answer is The Father of Microbiology!! I hoped this helped :)
A peacock is significantly more colorful than a pea hen and has a much larger tail. These traits allow the peacock to attract a mate but also make the peacock more visible to predators. This is an example of:
Answers
Answer:
This is an example of runaway sexual selection
Explain- a theory of female mate selection proposing that certain male traits with little or no survival advantage are nonetheless so sexually attractive to females that they choose mates with these traits and thereby ensure male offspring with the same attractive traits.
what does sexual development encompass
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Please explain the main energy source of life's processes:
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Answer:
The continual input of energy ,mostly from sunlight , sustains the process of life . Sunlight allows plants, alage and cyanobacteria to use photosynthesis to convert carbon dioxide and water into organic compounds like carbohydrates.
The Demaris family is deciding how to landscape their new home
Answers
Answer:
what is the name of this website
or the book?
I need help like ASAP
Which of the following did NOT investigate genetics through studying the structure of DNA?
Gregor Mendel
Rosalind Franklin
James Watson
Francis Crick
Answers
Answer:
Gregor Mendel
Explanation:
He did not study the structure of DNA.
He studied genetics, not DNA
The process by which a cell makes a copy of its dna so it can give complete and identical copies of all of its genes to each daughter cell is dna.
Answers
Answer:
The process by which a cell makes a copy of its DNA so it can give complete and identical copies of all of its genes to each daughter cell is DNA Synthesis.
Explanation:
DNA Synthesis is the process when a cell copies its DNA to equally distribute among daughter cells in mitosis and meiosis I.
I hope this helps!
Mesquite tree fruit pods are edible and can be harvested when ripe in January True False
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The statement: Mesquite tree fruit pods are edible and can be harvested when ripe in January is FALSE because they are harvested in late summer and early fall months.
While mesquite tree fruit pods are indeed edible, they are typically harvested in the late summer and early fall months, not in January. The pods are ripe and ready to eat when they turn a dark brown color and begin to fall off the tree.
Mesquite pods have been a staple food for many indigenous peoples in the southwestern United States and Mexico for thousands of years and are known for their high nutritional value, including being a good source of protein, fiber, and various vitamins and minerals.
Today, mesquite pods are still used for food, as well as for making various products such as flour, sweeteners, and beverages.
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The _____ attaches inferiorly at the sternum and superiorly at the mastoid process of the temporal bone and acts to support and move the head. Group of answer choices
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The muscle that attaches inferiorly at the sternum and superiorly at the mastoid process of the temporal bone and acts to support and move the head is the sternocleidomastoid muscle.
The sternocleidomastoid muscle (SCM) is a large, two-headed muscle that is located in the neck. It originates at the sternum (breastbone) and the clavicle and inserts at the mastoid process, which is a bony protrusion on the temporal bone behind the ear.
The SCM muscle is responsible for a variety of movements of the head and neck, such as rotating the head to the opposite side, tilting the head to the same side, and flexing the head forward. It also helps to stabilize the head and neck and can assist in breathing. It is commonly referred to as the "SCM muscle".
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explain step by step where the DNA is located and what equipment they will need to observe the DNA
PLEASE BE QUICK
Answers
Gel electrophoresis is a technique used to separate DNA fragments according to their size.
DNA samples are loaded into wells (indentations) at one end of a gel, and an electric current is applied to pull them through the gel.
DNA fragments are negatively charged, so they move towards the positive electrode. Because all DNA fragments have the same amount of charge per mass, small fragments move through the gel faster than large ones.
When a gel is stained with a DNA-binding dye, the DNA fragments can be seen as bands, each representing a group of same-sized DNA fragments.
Introduction
Osteclats have more ... than other body cells because it does more breaking down/recycling than other tissues
Answers
Answer:
Resorbing action or breaking or proteolytic
A coat color gene in cattle shows incomplete dominance. Utilize the allele (R) for red coat and (W) for white coat. In cattle, the phenotype for incomplete dominance can be brown.
⮞ Complete a Punnett square, mating a red animal and a white animal, and list the phenotypic ratio.
⮞ Complete a second Punnett square with an offspring, and mate it to a red animal. List the phenotypic ratio of the second mating.
Answers
There is a 25% chance for solid white coats.
To check the chances of a solid white coat offspring being formed, lets make a punnet square.
The gametes of the parents will be W and R v/s W and R.
W R
W WW WR
R WR RR
A punnet square is a diagram which is made to test the outcomes of a cross.
As the following punnet square shows:
There is 25% chance for solid white coat offspring to be formed (WW).
There is a 50% chance for the offspring to be roan (WR).
There is a 25% chance for the offspring to have solid red coats (RR).
What is punnet square?The Punnett square has been defined as the square diagram that is used to predict the genotypes of a particular cross or breeding experiment.
A gene region where there are two identical alleles present. Two alleles with the same variation or two alleles that are normal can both be present in a homozygous genotype.
Therefore, The gametes of the parents will be W and R v/s W and R.
W R
W WW WR
R WR RR
A punnet square is a diagram which is made to test the outcomes of a cross.
As the following punnet square shows:
There is 25% chance for solid white coat offspring to be formed (WW).
There is a 50% chance for the offspring to be roan (WR).
There is a 25% chance for the offspring to have solid red coats (RR).
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Which would best explain the Sudden Crash of the St. Matthew Island Reindeer Population ?
Answers
Answer:
Overgrazing, Intraspecific competition, Low amounts of food, and Ecological disturbances.
Explanation:
The mass die-off of reindeer on St. Matthew Island during the winter of 1963-64 appears to have been caused by a combination of factors:
(1) huge numbers of reindeer overgraze lichens on the island, which are traditionally the most significant winter feed;
(2) a large number of reindeer fighting for the relatively limited available fodder during the die-winter; off's
(3) the reindeer's comparatively low winter condition as a result of competition for high-quality summer fodder during the summer of 1963; and
(4) During the winter of 1963-64, adverse weather conditions, notably substantial snow accumulation, further limited the availability of the already decreased winter fodder.
If you are going to infer the topic, what does that mean?…..
Answers
Answer:infer implies arriving at a conclusion by reasoning from evidence; if the evidence is slight, the term comes close to surmise.
Explanation:infer
what significant role does dna play in formation and development of an organism
Answers
Answer:
DNA contains the instructions needed for an organism to develop, survive, and reproduce. To carry out these functions, DNA sequences must be converted into messages that can be used to produce proteins, which are the complex molecules that do most of the work in our bodies.
Explanation:
DNA contains the instructions needed for an organism to develop, survive, and reproduce.
What is DNA?
Cells' capacity to store, retrieve, and translate the genetic instructions necessary to create and maintain a live organism is essential to life.
This genetic material is transmitted from one generation of an organism to the next through the reproductive cells of the organism and from one cell to its daughter cells during cell division.
Every living cell contains these instructions as part of its genes, which are the information-containing components that define the traits of a species as a whole and of the individuals within it.
Therefore, DNA contains the instructions needed for an organism to develop, survive, and reproduce.
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