1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alik [6]
3 years ago
13

What is a telomere? What happens to telomeres each time DNA is replicated? How do cells prevent this from occurring?

Biology
1 answer:
vredina [299]3 years ago
7 0
Telomeres are protective sequences of nucleotides found at the ends of chromosomes,Which become shorter every time a cell divides.
A gradual degeneration of an organism occurs, resulting in ageing.
However, some cells are able to replenish their telomeres using the enzyme telomerase. 
Hope this helps! :)
You might be interested in
Which of the following statements about blood is false?
SCORPION-xisa [38]

Answer:

B) The normal pH of blood is 6.8 to 7.0.

Explanation:

The blood pH under normal health conditions is between 7.35 and 7.45. Below this range, blood pH is considered more acidic than normal, and it may indicate that the body is eliminating a lower amount of CO{2} than normal, or that there is a decrease in the concentration of HCO{3-} or accumulation of acid in the blood due to poisoning or disease.

3 0
3 years ago
Placing a rat in a cage where electrical shocks over which the rat has no control are occasionally administered through the floo
V125BC [204]
Hello,

Placing a rat in a cage where electrical shocks over which the rat has no control are occasionally administered through the floor is a way to create  →  <span>learned helplessness 

Good luck :)</span>
6 0
3 years ago
It was discovered by Alexander Fleming in the 1920's that Penicillium notatum produced a substance, know as penicillin, which ha
Stolb23 [73]

Answer: (B) Fungi

Explanation:

<u>Penicillium notatum is a species of fungus</u> in the genus Penicillium. It is common in temperate and subtropical regions and can be found on salted food products, but it is mostly found in indoor environments, especially in damp or water-damaged buildings.

6 0
3 years ago
Read 2 more answers
Rainforests around the world are being cleared at an alarming rate to make room for new communities, agriculture, mining, and ro
storchak [24]
I think it’s a I’m prob wrong tho
8 0
3 years ago
Read 2 more answers
When a true breeding plant with purple kernels was crossed with a true breeding plant with yellow kernels the f1 cob had kernels
rodikova [14]

Answer:

fffffefwefwefwefwefwefwef

Explanation:

fwefwefwefiowejfiwejflkfjsdkljfkldsjfsdkljfksdljf

8 0
3 years ago
Other questions:
  • Look at the data tables below. Which would most likely produce a nonlinear graph? 
    8·2 answers
  • Bell work #1 help on Question
    15·1 answer
  • Which type of reproduction is MOST advantageous for the production of a wide variety of different organisms? A) budding B) fragm
    12·2 answers
  • 9. The production of the enzymes that catalyze the reactions of the urea cycle can increase or decrease according to the metabol
    8·1 answer
  • What stage of cellular respiration does not involve any carbon-based compounds as a reactant or product? A. Electron transport c
    14·2 answers
  • The wicked witch and the big bad wolf are examples of
    5·2 answers
  • Where is the name of the process by which coal is taken from earth after the layer of ground on top of it is removed?
    13·2 answers
  • What is cross breeding impact on the environment
    5·2 answers
  • Many scientists are worried that the increased amount of carbon dioxide in Earth's atmosphere will _____
    6·1 answer
  • Which statement is part of Dalton's atomic theory?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!