Loss of dna sequences at the ends of chromosomes in the ________ region may cause cell senescence.

Answers

Answer 1

Loss of DNA sequences at the ends of chromosomes in the telomere region may cause cell senescence.

A chromosome's end contains a stretch of repeating DNA sequences known as a telomere. Chromosome ends are shielded from fraying or tangling by telomeres. The telomeres get a little bit shorter every time a cell divides. They eventually get so short that the cell can no longer successfully divide, and the cell then perishes.With age, telomere length decreases. The health and lifespan of an individual are impacted by the progressive shortening of telomeres, which causes senescence, apoptosis, or oncogenic transformation of somatic cells. Reduced survival and higher illness incidence have been linked to shorter telomeres.Telomeres shrink by 50–200 bp with each somatic cell division cycle as a result of inadequate synthesis of the lagging strand during DNA replication.

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Related Questions

PLS HELP IM TIMED!!
Fish eggs that are fertilized externally are typically clustered and covered in a thick, jelly-like substance.
What is most likely the function of this substance?
a) to protect the eggs and keep them consistently warm inside the parent's body
b) to protect the eggs and keep them safe from any harmful environmental conditions
c) to ensure that only a few of the eggs are fertilized by sperm since external fertilization is uncommon and risky
d) to ensure that only some of the eggs are fertilized by sperm so others can be fertilized internally

Answers

Answer:

Don't get me wrong but I think it's B

Explanation:

Answer:

The correct answer is B: to protect the eggs and keep them consistently warm inside the parent's body.      It is correct on edge

Explanation:

Hope this helps and good luck:)

Plant life in wetlands is not
different from plant life In other areas.
True
False

Answers

False

Explanation: Plant life in wetlands are moist but in different plant life are not that much moist.

If you wanted to find an ant's stomach, where would
you look?
a. Inside its head
b. Inside its cephalothorax
c. Inside its thorax
d. Inside its abdomen

Answers

Answer:

d. Inside its abdomen

Explanation:

Hope this helps!

D, inside its abdomen

A student knows the width and
length of a dresser. What else
should she measure so she can
calculate the volume?
A. Mass
B. Density
C. Height

Answers

Answer:

C. Height

Explanation:

The volume of a rectangle is Length x width x height.

The student has only measured the width and length so far, the only thing left to measure is the height.

The other answers don't make sense.

Hope this helps!!

- Kay :)

Answer:

c

Explanation:

What thing controls the functions of the different cells ? (Hint it is inside the nucleus)

Answers

Answer:

DNA

Explanation:

It's the genetic material that writes up who we are.

But if it's discussing an organelle, then it's the nucleus.

Have a great day!

A student tested food samples for the presence of various nutrients and recorded her findings in
the data table below. A"+" denotes that the nutrient was present in the sample. Adenotes that
the nutrient was absent. Use the student's data to answer the next 3 questions.
Nutrient
Glucose
Starch
Protein
Lipid
Sample 1
Sample 2
Sample 3
Sample 4
Based on the student's data, which food sample(s) would contain amino acids?
O sample 3
O Samples 1 and 4
O sample 2
O samples 2 and 3

Answers

Answer:

4mhky4stjs reste w test

Explanation:

hjentekrwjetbwtfhwtjt3j3tj

PLEASE HELP QUICKLY

Match each of the following to the correct organ system.

Lungs

Heart

Veins

Arteries

Stomach

Large intestine

Trachea

Small intestine

Muscles

Bones

Liver

Pancreas

Gall bladder

Kidney

Bladder

Choices are...


A. Skeletal System

B. Excretory System

C. Digestive System

D. Circulatory System

E. Muscular System

F. Respiratory System

Answers

Explanation:

1. stomach - Digestive

2. Brain - Nervous

3. Heart - Cardiovascular

4. kidneys - excretory

5. bone marrow - lymph

6. pituitary gland - endocrine

7. xylem- vascular tissue

8. bones - skeletal

9. Fallopian tubes - reproductive

hope this helps liine some up together i dont give whole answers just try to help ppl out, ill see what i can do thogh, dont quite undderstand can thee be more than one to go with the numbered ones?

seasons work help needed please

Answers

Answer:

July

Explanation:

it is typically the warmest month of the year globally because the Northern hemisphere has more land masses than the southern hemisphere

Without genetic variation, natural selection would not be possible. Explain why.

Answers

Answer:

Without genetic variation, natural selection is only able to grow the number of allelomorphs that previously exited in the population. Natural selection occurs through an interaction between the environment and the variability of the individual organisms making up a population. If every giraffe had the same neck length, there would be nothing to change and they would never have a long neck by now.

match the choices with each box.

Answers

Answer:

1 is totipotent

2 is mutipotent

3 is pluripotent

4 is totipotent

5 is pluripotent

6 is mutipotent

Explanation:

I honestly dont know sorry if they r wrong

Mitosis is done by your body cells. What types of cells do not undergo mitosis

Answers

Answer:

Sex cells/ gametes

Explanation:

Sperm cells and egg cells don't go through mitosis

What happens during S phase?

Answers

Answer:

DNA is replicated

Yall Im struggling, if u cant read it, the question is “why does a mountain climber need an oxygen supply at very high altitudes, even tho the air still contains 21% oxygen?

Answers

Answer: Because it is harder to draw breath in. And the cold

Explanation: At higher altitudes, it becomes more dangerous, and you can develop altitude-related illnesses such as HAPE and HACE. I read a book called Into Thin Air, and in the book the author goes into detail on the details/complications of climbing Mt.Everest and oxygen needs. Mountain climbers use canisters of oxygen called Supplemental Oxygen.

Help!! Please!! I'll name you brainliest!!

Answers

Explanation:

the same as the charge on the ion.+1 +2-2

5. -1

plz mark my answer as brainlist plzzzz you get it helpful ☺️.

Hope this will be helpful to you.

The EPA sets national air-quality standards for common air pollutants. The
data table shows the change in concentrations of these pollutants over time.
Emissions Reductions and Air Quality
Data period
Reduction
Pollutant
Improvement
(from/to)
in emissions (%) in air quality (%)
СО
69
85
Pb
99
98
1980 - 2014 NO,
55
60
0,
53
33
81
80
16
30
2000 - 2014
33
36
SO2
PM,
PM25
Which conclusion do the data support?

Answers

The data support the conclusion that reducing emissions leads to improvement in air quality for the common air pollutants monitored by the EPA.

What is EPA?

The Environmental Protection Agency (EPA) is a federal agency of the United States government that was established in 1970 to protect human health and the environment. The EPA's mission is to ensure that all Americans have clean air to breathe, clean water to drink, and safe land to live and work on. The agency is responsible for setting and enforcing national standards for air and water quality, as well as for managing toxic waste and other pollutants.

The EPA also works with other federal agencies, states, tribes, and local governments to address environmental challenges, such as climate change, ozone depletion, and exposure to hazardous substances. The EPA uses a range of tools and programs, including research and development, regulation, partnerships, and education and outreach, to achieve its mission. The agency also provides information and technical assistance to help individuals, communities, and businesses protect the environment and public health.

Learn more about EPA, here:

https://brainly.com/question/30240841

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Answer:

B . With monitoring, the concentration of every pollutant has decreased

Explanation:

A mRNA codon is AGC. The tRNA anticodon will be

Answers

YES YES YES YES YES YES YES YES I don’t get what u are saying but points for me!
A mRNA codon is AGC. The tRNA anticodon will be UCG.

Which of these contributes the most oxygen to our planet?

a. Photosynthetic fungi
b. The Amazon Rain forest
c. the National Forests
d. Phytoplankton

Answers

Answer:

D. Phytoplankton

Explanation:

The majority of this production is from oceanic plankton — drifting plants, algae, and some bacteria that can photosynthesize.

Have a wonderful day! <3

Answer:

D

Explanation:

this is because the ocean produces the most oxygen and most of that comes from plankton in the ocean

What change caused the rate of population growth to increase around point C?

Answers

Answer:

point c

Explanation:

Material rising from the mantle reaches the surface at spreading centers.
A. True
B. False

Answers

Yes, It's true!

Explanation:

Material rising from the mantle reaches the surface at spreading centers.

A. True

B. False

When do populations increase?

Answers

Answer:

c

Explanation:

i have seen this before and i got it correct i dont know if it works with you?

hey there!
the correct answer would be C when birth rights are higher then death rights.
this is correct because when there are more people being born and less dying there are more overall people.
hope this helped!

The vocal cords stretch across the opening of the larynx. True or false??

Answers

Answer:

True

Explanation:

Vocal cords are bands of smooth muscle tissue located in the larynx. When air passes through, the vocal cords vibrate.

Answer: True

Explanation:

The vocal folds, also known popularly as vocal cords, are composed of twin infoldings of mucous membrane stretched horizontally across the larynx. They vibrate, modulating the flow of air being expelled from the lungs during phonation.

Match each description with the correct ecosystem.

This ecosystem experiences sudden changes in water level and temperature.

This ecosystem contains a mix of fresh water and salt water.

This ecosystem supports many plants, which provide food for schools of fish.

Answers

Answer:

1 - B or intertidal zone

2 - A or estuary

3 - C or neritic zone

Explanation:

These are the correct answers, I took the test on edge, have a great day!!

Answer: B, A, C,

Explanation:

I did it and got it right

Phineas and Ferb build a flying machine. They accelerate into the air in a
straight line, going from 0 m/s to 30 m/s in 3 s. Find their average
acceleration.

Answers

10

30 dived by 3 = 10

hope it helps

What sentence best supports the statement that hormones are involved in the regulation of homeostasis?

A.
The hormone cortisol suppresses the immune system and is produced when the body is under stress.
B.
The hormone oxytocin promotes labor contractions of the uterus during childbirth.
C.
The hormone melatonin induces sleep and its production is slowed by exposure to light.
D.
The hormone erythropoeitin increases the production of red blood cells when oxygen levels are low.

Answers

Answer:

D

Explanation:

It is an homeostatic process

HELP ASAP WILL GIVE BRAINLISET Which of the following describes the Cell Theory?

Group of answer choices

(A)All

(B)All living things are composed of one or more cells.

©Cells are the basic unit of life

(D)Cells are produced from existing cells

Answers

Answer:

C. Cells are the basic units of life.

Explanation:

Answer: A.) All
Explanation: Wikipedia :/

1. What were the conditions on the planet when life began?

Answers

Answer: The early Earth had no ozone layer and was probably very hot. The early Earth also had no free oxygen. Without an oxygen atmosphere very few things could live on Earth. Anaerobic bacteria were probably the first living things on Earth.

how are viroids different from viruses​

Answers

Answer:

We are all familiar with the basics of viruses: These particles infect living cells and wreak havoc throughout the body. But viruses aren’t the only villains around causing chaos in living things. Other infectious agents called viroids and prions — which are also tiny but powerful — can take down both plant life and entire animals.

Viroids are free RNA molecules of low molecular weight without any protein coat, while viruses can have either RNA or DNA molecules encapsulated in a protein coat. Viroids are smaller in size than viruses.

Viroids not made of cells.

Viroids don’t transform energy.

Viroids can’t reproduce on their own.

Anyone know what is the answer pls ?

Answers

Answer:

1. Viruses 2. ? 3. Viruses 4. ? 5. Immunity 6. Vaccine

Explanation:

What is the structure of a virus?

Answers

Answer:

The simplest virions consist of two basic components: nucleic acid (single- or double-stranded RNA or DNA) and a protein coat, the capsid, which functions as a shell to protect the viral genome from nucleases and which during infection attaches the virion to specific receptors exposed on the prospective host cell.

A virion consists of a nucleic acid core, an outer protein coating or capsid, and sometimes an outer envelope made of protein and phospholipid membranes derived from the host cell. The capsid is made up of protein subunits called capsomeres. Viruses may also contain additional proteins, such as enzymes


True or False.
A group of the same species of living things in an area is a population

Answers

Answer:

True.

Explanation:

A population is a group of organisms of the same species that live in the same area at the same time

Answer:

True!

Hope this helps.

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Calculate the emf of the following concentration cell at 25 degrees C:Cu(s) / Cu2+(0.017M)// Cu2+ (1.269 M)/ Cu (s) Who determines consumer credit scores? the conventional environmental kuznets curve is drawn to represent that: _____ Complete the following code to print the average of the list. new list = [0, 1, 2, 3, 4] XXX print ('The average is {}'. format(avg) ) If image above does not appear, click here a O avg = sum(new_list) /max(new_list) O avg = sum(new_list)/( max(new_list) + min(new_list) ) O avg = sum(new_list)/len(new_list) O avg = sum(new_list)/( max (new_list) - min(new_ list)) you're instructed to administer fluids at a maintenance rate to a 700 gram guinea pig. What is the amount of fluid that you'll use over a 24 hr period?a.300 mlb. 25 mlc. 150 mld.70 ml this type of communication is involuntary and involves physiological responses like raised body hair and body odors: A contingent liability is a potential liability that depends on a future event arising from a past transaction.Describe a contingent liability that would require a journal entry in the company's books. Provide one example.Describe a contingent liability that would require a disclosure in the financial statements. Provide one example.Describe a contingent liability that would not require a disclosure or a journal entry. Provide one example. in later adulthood, confidence is sustained and bolstered by Edison Electric Systems is considering a project that has the following cash flow and WACC data.What is the project's NPV? Note that a project's projected NPV can be negative, in which case it will be rejected.WACC = 10%Year:0123Cash flows:-$1,000$450$460$470 Assume that the velocity of money is constant. if there is a 2 percent increase in the money supply in the short run, it will result in a 2 percent increase in: Company A has issued $2 million (notional principal) in five-year bonds with a floating (variable) annual interest rate defined as the LIBOR plus 1.2% (Assume that LIBOR is at 2.3% in year 1 and increases by 0.55% per year thereafter). What is the total amount company A will pay in five years? O a. $98,750 O b. 85,000 Oc. $128,750 O d. $115,000 Background info of the bull run/Manassas an extension of the green fluorescent protein technique led to the development of: John is a married heterosexual man who has been having problems maintaining an erection. He decides to seek help for his problem. He goes to a cognitive- ... A, B C are points on a circle CD is a tangent to the circleWrite down the size of xGive a reason for your answersCIRCLE THEROEMS QUESTION Three Greek columns. Which of the following is not one of the three Greek orders? a. Doric c. Ionic b. Classical d. Corinthian. which of the following views will display the privileges currently enabled for a user? how many 5-letter sequences (formed from the 26 letters) with repetition allowed contain exactly 2 a's and exactly 1 n? taking log of variables make ols estimates mroe senstistive to extreme values in comparison to variables taken in level The velocity distribution in a two-dimensional steady flow field in the xy-plane is V = (Ax + B)i + (C - Ay)i, where A = 25-1, B = 5 m.s-1, and C= 5 m.s-1; the coordinates are measured in meters, and the gravitational acceleration is g = -gk. Does the velocity field represent the flow of an incompressible fluid? Find the stagnation point of the flow field. Obtain an expression for the pressure gradient in the flow field. Evaluate the difference in pressure between points (x,y,z) = (1,3,0) and the origin, if the density is 1.2 kg/m?