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Doss [256]
2 years ago
6

Why are telomeres problematic for eukaryotic chromosome replication? a) They are highly repetitive and thus hard to replicate co

rrectly. b) Telomerase is more error-prone than the normal DNA Polymerase. c) The T loop blocks formation of primers on the lagging strand. d) Removal of the lagging strand primer leaves a gap in the one of the strand's DNA sequences. e) Maintaining very long telomeres promotes cancer cell formation.
Biology
1 answer:
Natalka [10]2 years ago
4 0

Answer: Option E

Maintaining very long telomeres promotes cancer cell formation.

Explanation:

Telomere refers to either of the sequences of DNA at each end of a eukaryotic chromosome.

Usually, in eukaryote chromosome replication, telomeres are not replicated.

Hence, they are usually lost resulting in the shortening of the telomere ends after repeated cycle of cell division. This also leads to cell aging and stoppage of cell division.

The shortening of telomere combined with stoppage of cell division, and cell aging initiation prevent CANCER, which thrives on lengthy telomeres

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2 years ago
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Restriction digest A:
vredina [299]

Answer:

This question seem incomplete

Explanation:

This question seem incomplete. However, if the strand of the second fragment is what is provided above, then the answer is <em>51</em>

This strand/fragment is definitely a DNA strand because of the absence of uracil (U) or because of the presence of thymine (T). The four bases in a DNA are adenine (A), Thymine (T), cytosine (C) and Guanine (G). These bases also bind to one another in the pattern described below

A ⇆ T

G ⇆ C

Hence, the adenine (A) on one strand can only bind to thymine (T) on the complementary strand (and vice versa) while the guanine (G) on one strand can only bind to cytosine (C) on the complementary strand (and vice versa).

Hence, the letters seen is the question are representations of bases in a DNA strand/fragment. The number of letters/bases here are <em>51</em>

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<span>although the models of genetic drift predicts the genetic diversity.
I put this in and got 100% for the question ^^</span>
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