what enzyme prevents the degradation of the ends of linear chromosomes?

Answers

Answer 1

Telomerase is the name of the enzyme that stops linear chromosomal ends from deteriorating. The repeating DNA sequences known as telomeres are added to the ends of chromosomes by the specialist enzyme telomerase.

Telomeres are essential for maintaining the chromosome's integrity and preventing the genetic material from being lost during DNA replication.

Due to the intrinsic constraints of the DNA replication process, a little amount of the telomere is lost throughout each cycle of replication.

Telomerase prevents the chromosomes from being too short and potentially losing vital genetic information by re-adding the missing telomere sequences to counterbalance this shortening.

Telomerase contributes to the lifespan and integrity of chromosomes by preserving the length and stability of telomeres.

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Related Questions

A person sees a ball and kicks it, in part because of actions of the nervous system. Using the parts of the nervous system listed, describe the path of nerve impulses that cause the person to (1) see the ball and (2) kick the ball.

Answers

Answer:

In the case of seeing a ball and kicking it can be expressed in the actions of the nervous system as follows:

Part 1. Eyes see the ball and send signals with the help of sensory neurons that carry this message to the spinal cord.

PArt 2. The spinal cord processes the information and sends an "impulse" of kicking the ball that will transfer to motor neurons that transfer it to the brain and then muscles.

Sensory neurons --> spinal cord --> motor neurons --> brain---->leg muscles

Based on past water quality predictions and the track record of previous mines, how often are water quality predictions accurate?

Answers

There have been cases where water quality predictions have not been accurate, leading to negative environmental impacts and regulatory violations in mines.

How can accuracy be improved for quality prediction?

To improve the accuracy of water quality predictions, many mining companies and regulators have increased the use of advanced modeling techniques and monitoring technologies, as well as taking a more proactive approach to environmental management.

Overall, while there is no guarantee of 100% accuracy when it comes to water quality predictions for mining activities, with the use of advanced technologies and management strategies, it is possible to reduce the risk of negative impacts and ensure that mining activities are conducted in an environmentally responsible manner.

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What are the elements found in each component of the nucleotide? Why is this significant?

Answers

In nucleotide: there is a nitrogen base+ (deoxy)ribose sugars +phosphate groups>>>>
Sugars and phosphate groups form the backbone of the DNA and RNA/ also phosphate groups give the molecules a negative charge and slightly acidic.

Name the living element of xylem.
PLZ ANSWER MY QUESTION IF U KNOW

Answers

Answer:

The xylem tracheary elements consist of cells known as tracheids and vessel members, both of which are typically narrow, hollow, and elongated. Tracheids are less specialized than the vessel members and are the only type of water-conducting cells in most gymnosperms and seedless vascular plants.

Which is a question Lamarck MOST LIKELY would have asked when developing his evolutionary hypothesis? A. Is evolutionary change the result of survival of the fittest? B. Can body structures change according to the actions of the organism?

Answers

Answer:

id say b

Explanation:

QUESTION 2
Destroying the rainforest causes a number of problems. Which of the following would NOT change as a result?
O The amount of biodiversity in the biosphere.
O The transfer of energy in all food chains..
O Levels of carbon dioxide in the atmosphere.
O The potential to find cures for illnesses.

Answers

Answer: D

Explanation:

D. The potential to find cures for illnesses is your answer

Is it possible for two children have such different blood types?
My birth mother said I was Type AB
And my brother is Type O.

Answers

Answer:

Yes it is possible.

Explanation:

0.researchers have identified a specific gene, called , that is thought to be responsible for sharply increasing children's risk for obesity. a.obe b.fto c.oto d.fta

Answers

FTO is the gene responsible for causing obesity in child .

obesity can be caused by many lifestyle issues like little activity and eating high mount of calories food and drinks . But this disease is also related to  genetic and hormonal factors that might play an important role . many Studies have concluded  that the fat mass and obesity associated (FTO) genotype is associated with individual instability in weight loss with response to diet lifestyle interventions, but results are inconsistent.

Fto is mostly downregulated during fasting and upregulated during feeding, and that variation in Fto resulting in decreased expression or activity might provide a signal that promotes feeding and obesity.

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What mode of transmission would fit disease pattern D? A. Parenteral B. Fomite C. Biological vector. D. Droplet E. Water.

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The disease pattern D in order to determine which mode of transmission would be most likely Droplet transmission.

To determine the mode of transmission that would fit disease pattern D, we first need to understand what disease pattern D is. The mode of transmission refers to the way in which a disease is spread from one person to another. The most common modes of transmission include direct contact, indirect contact, airborne transmission, and vector-borne transmission.
Parenteral transmission refers to the transfer of a disease through injection or puncture wounds, such as through the use of contaminated needles. Fomite transmission refers to the spread of a disease through contaminated objects, such as door handles, keyboards, or other surfaces. Biological vector transmission refers to the spread of a disease through a living organism, such as a mosquito, that carries the disease-causing agent. Droplet transmission refers to the spread of a disease through small droplets of saliva or mucus that are expelled when an infected person coughs or sneezes. Water transmission refers to the spread of a disease through contaminated water sources.

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if a cell is placed in hypotonic solution water will flow

Answers

Answer: there will be a net flow of water into the cell

Explanation: If a cell is placed in a hypotonic solution, there will be a net flow of water into the cell, and the cell will gain volume. If the solute concentration outside the cell is lower than inside the cell, and the solutes cannot cross the membrane, then that solution is hypotonic to the cell.

Gametes contain ______ the number of chromosomes that were present in their parent cells. *

Answers

Answer:

23 pairs

Explanation:

46 chromosomes (total)

A change in a tissue marked by cells that vary in size and shape and show increased mitotic figures would be called:

Answers

Answer:

Anaplasia and Pleomorphism

Explanation:

Write three advantages of breathing through the nose than through the mouth

Answers

Answer:

reduce exposure to foreign substances. humidify and warm inhaled air. increase air flow to arteries, veins

Bacteria were first observed in 1903. True False

Answers

Answer:

false, it was first observed in 1676

Explanation:

Answer:

FALSE!!!!

Explanation:

An unknown specimen was grown on Indole media. Based on your observation of this specimen choose the appropriate statements.
A. This test is a part of the IMViC panel of tests
B. The organism tested converts tryptophan to indole.
C. This media is inoculated by stabbing the agar in the tube.
D. This is a picture of a negative test result.
E. This is a picture of a positive test result.
F. The organism tested fermented indole.

Answers

Here are the appropriate statements about an unknown specimen grown on Indole media based on your observation: B. The organism tested converts tryptophan to indole.C. This media is inoculated by stabbing the agar in the tube.E. This is a picture of a positive test result.F. The organism tested fermented indole.

The indole test is used to determine an organism's ability to decompose the amino acid tryptophan into indole. The indole production is detected by adding Kovac's reagent, which contains p-dimethylaminobenzaldehyde, to the medium after incubation.

Tryptophan is an amino acid that is the precursor to indole production in this test. The amino acid tryptophan is a prerequisite for indole production. It is for this reason that organisms that can break down tryptophan into indole are positive.

This is the appropriate response to the student's question:

An unknown specimen was grown on Indole media. Based on your observation of this specimen choose the appropriate statements. B. The organism tested converts tryptophan to indole.C. This media is inoculated by stabbing the agar in the tube.E. This is a picture of a positive test result.F. The organism tested fermented indole.

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The process of breaking triglycerides down into glycerol and fatty acids is known as ________.
A) gluconeogenesis
B) fat utilization
C) lipogenesis
D) lipolysis

Answers

The process of breaking triglycerides down into glycerol and fatty acids is known as lipolysis and is therefore denoted as option D.

What is Triglyceride?

This is referred to as an ester derived from glycerol and three fatty acids and is the main component of fat in the body of organisms such as humans, animals etc.

It is derived from the body and the calories derived are usually converted to this compound. during digestion, triglycerides are broken down into glycerol and fatty acids through the process which is known as lipolysis and they are then used by the body for various purposes.

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Which of the following is the classification of a fatty acid with carbon atoms linked by single carbon-carbon bonds?
A
saturated

B
polyunsaturated

C
monounsaturated

D
linked

Answers

Answer:

A. saturated fatty acids

Explanation:

Contain single corbon-corbon bond

While unsaturated contain one or more than one double bond in their structure.

will mark brainly please help

will mark brainly please help

Answers

Answer:

The answer is

Explanation:

Coronal mass ejections match with energy released during nuclear fusion.

Solar wind match with includes prominences and solar flares.

Gamma ray photon match with a stream of plasma.

Hope this helps....

Have a nice day!!!!

Answer:

Coronal mass ejection: a stream of plasmaGamma ray photon: energy released during nuclear fusionSolar wind: includes prominences and solar flares

yoar until full yesting is reached at the end of the 7th yoar. True Falsec

Answers

The statement "Yoar until full yesting is reached at the end of the 7th yoar" is false because it contains multiple errors.

Firstly, the word "yoar" is likely a misspelling of the word "year." Secondly, the phrase "until full yesting is reached" is unclear and doesn't convey a meaningful idea. Additionally, the repetition of the word "yoar" at the end of the statement appears to be another typographical error.

Overall, the statement lacks coherence and logical consistency, making it impossible to identify a specific reason for its falsehood. It is important to ensure clear and accurate communication to convey accurate information and avoid confusion or misunderstanding or multiple errors.

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How is a single cell similar to a grey wolf?

Answers

Answer:

Grey wolf optimizer (GWO) is a newly developed metaheuristic inspired by hunting mechanism of grey wolves. The paramount challenge in GWO is that it is prone to stagnation in local optima. This paper proposes a cellular grey wolf optimizer with a topological structure (CGWO). The proposed CGWO has two characteristics. Firstly, each wolf has its own topological neighbors, and interactions among wolves are restricted to their neighbors, which favors exploitation of CGWO. Secondly, information diffusion mechanism by overlap among neighbors can allow to maintain the population diversity for longer, usually contributing to exploration. Empirical studies are conducted to compare the proposed algorithm with different metaheuristics such as success-history based adaptive differential evolution with linear population size reduction (LSHADE), teaching-learning based optimization algorithm (TLBO), effective butterfly optimizer with covariance matrix adapted retreat phase (EBOwithCMAR), novel dynamic harmony search (NDHS), bat-inspired algorithm (BA), comprehensive learning particle swarm optimizer (CLPSO), evolutionary algorithm based on decomposition (EAD), ring topology PSO (RPSO), crowding-based differential evolution (CDE), neighborhood based crowding differential evolution (NCDE), locally informed particle swarm (LIPS), some improved variants of GWO and GWO. Experimental results show that the proposed method performs better than the other algorithms on most benchmarks and engineering problems

Explanation:

According to Darwin, natural selection is a process by which?

Answers

Answer:

According to Darwin natural selection is a process by which living organisms adapt and change to survive in nature and it's limited resources.

You look at a cell under the microscope and see cell walls and membrane-bound organelles. What type of cell are you looking at? Justify your answer.

Answers

Answer:

Explanation:

Cells fall into one of two broad categories: prokaryotic and eukaryotic. The predominantly single-celled organisms of the domains Bacteria and Archaea are classified as prokaryotes (pro– = before; –karyon– = nucleus). Animal cells, plant cells, fungi, and protists are eukaryotes (eu– = true).

Complete the following sentence.
An animal ________ is a scientist who works to improve the genetic of livestock.

Answers

An animal geneticists is a scientist who works to improve the genetic of livestock.

there is a heard of deer in a field that has an area of 6km^2 and a population of 54 deer. what is the population density of this herd of deer?

Answers

Answer:The population density of the herd of deer in the field with an area of 6km^2 and a population of 54 deer is 9 deer per km^2.

Help me ASAP and I’ll give u a brainliest

Help me ASAP and Ill give u a brainliest

Answers

Answer:B

Explanation:

in cell membranes, carbs in glycoproteins are oriented?

Answers

Carbohydrates in glycoproteins can be oriented in different ways within cell membranes depending on the specific glycoprotein and its function.

In some cases, the carbohydrate chains may be oriented towards the extracellular side of the membrane, where they can be involved in cell-cell recognition or signaling. In other cases, the carbohydrate chains may be oriented towards the cytoplasmic side of the membrane, where they may be involved in intracellular signaling or regulation.

In general, the orientation of the carbohydrate chains within glycoproteins is thought to be important for their function, as it can determine which other molecules they interact with and how they are involved in various cellular processes.

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Consider a signal transduction pathway that utilizes cAMP as a second messenger to activate PKA (Protein Kinase A). Which of the following situations will result in the cellular response?
(a) The G protein releases GDP and binds to GTP
(b) The target protein (adenylyl cyclase) is inactive
(c) The regulatory subunits of PKA (Protein Kinase A) are bound to the catalytic subunits
(d) The appropriate G protein is bound to GDP

Answers

Think of a signal transduction pathway that activates PKA by using cAMP as a second messenger (Protein Kinase A). Which of the subsequent circumstances will cause the cellular response is

The correct option is a

The situation that will result in the cellular response in a signal transduction pathway that utilizes cAMP as a second messenger to activate PKA (Protein Kinase A) is option (a) - The G protein releases GDP and binds to GTP.

When an extracellular signal binds to a G protein-coupled receptor, the receptor activates a G protein, which then releases GDP and binds to GTP. The GTP-bound G protein then activates adenylate cyclase, which converts ATP into cAMP. The cAMP then binds to and activates the regulatory subunits of PKA, causing them to dissociate from the catalytic subunits. The free catalytic subunits of PKA are then able to phosphorylate target proteins and initiate the cellular response.

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Distance time graphs can you be used compare the what of two different objects

Answers

Answer:

Recall that on a distance–time graph, the speed of an object is equal to the gradient of the line that represents its motion. Therefore, to compare the speeds of the objects, we'll calculate and compare the gradients of the two lines

Plants and animals have structures, behaviors, and other traits called adaptations that help them to survive. For example, the gills of a fish are an adaptation for living under water, while lungs are an adaptation to living on land. Switch to the LANDSCAPE tab, choose One location, and check that New York is selected. Click on the deer, squirrel, and oak tree to learn about each organism. Describe one way that each organism is adapted to live in New York’s climate. Organism Adaptation White-tailed deer Eastern gray squirrel Northern red oak

Answers

The white-tailed deer is well adapted to living in New York's climate due to its thick fur coat.

What is adaptation?

The process of evolution whereby an organism improves its capacity to survive in its habitat or habitats is known as adaptation.

White-tailed deer: Thanks to its thick fur coat, the white-tailed deer is well acclimated to the environment of New York.

The deer's fur provides insulation in the winter and keeps it warm in the chilly weather, while in the summer it offers shade and regulates the deer's body temperature.

Eastern gray squirrel: The Eastern gray squirrel has a thick, fluffy tail that it employs for stability while climbing trees and that also serves to keep it warm in the winter.

Red oak in the north: Red oaks in the north have robust, deep roots that enable them to draw water and nutrients from the soil's depths.

Due to their adaptation, they are better able to survive environmental stresses like drought, which are frequent in New York's climate.

Thus, these are the ways that each organism is adapted to live in New York’s climate.

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What are the pros and cons of an organism only having one cell

Answers

Reproduce quickly because they are simple organisms.

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