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Daniel [21]
3 years ago
15

WILL MARK BRAINLIEST

Biology
2 answers:
eimsori [14]3 years ago
5 0
The correct answer is B. 50 percent
Drupady [299]3 years ago
4 0

Answer:

50percent is the answer

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#15. what is the end-replication problem? why, in the absence of telomerase, do the ends of the linear chromosomes get progressi
noname [10]

The DNA replication by the action of DNA polymerase takes place in the 3' to 5' direction on the leading strand. The lagging strand which has the opposite orientation or polarity as that of the leading strand requires a more time to get synthesised. The DNA replication of the lagging strand happens in short segments where a RNA primer forms a compliment with a part of the DNA segment on its 3' end. This RNA primer helps initiate the replication of the Okazaki fragments. When the replication on the lagging strand reaches its end, the RNA primer forms a compliment with the last bit of the strand. This small segment gets missed in the end as no more DNA is left to form a RNA primer-DNA compliment. Such shortening of the lagging strand in the replication process is the end-replication problem.

Telomeres are protective ends of the DNA strands. These ends contain a poly-A tail. When the lagging strand replication reaches its end, the RNA primer forms a compliment with the telomere and initiates the replication. This leads to the shortening of the telomere and not the coding segments on the lagging strand of DNA. The telomerase repairs the shortened telomere by re-synthesising it.

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3 years ago
Which statement accurately describes the outer planets
lilavasa [31]

Answer:

the outer planet have thin atmosphere

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3 years ago
If the population of insects decreases, which other population will decrease the most?
Nonamiya [84]

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lizards is the anwser. lol

3 0
2 years ago
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Careful study of commonalities among different organisms suggests that all life on Earth Careful study of commonalities among di
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Yes, all life on Earth depends on sunlight for obtaining energy and also shares a common ancestor of all organisms that lives on the land surface or in the oceans.  Sun is the major source of energy through which plants produces food for itself and for other organisms. All the organisms have common ancestors which evolved with the passage of time when the change occurs in the environment and is responsible for the diversity of organisms.

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2 years ago
If a section of DNA that was transcribe has the sequence:
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A. U - A - C

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