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weqwewe [10]
3 years ago
13

Which best describes how DNA is used as a molecular clock? (2 points)

Biology
2 answers:
DanielleElmas [232]3 years ago
8 0

Answer:

The correct answer would be the first option.

Molecular clocks compare the nucleotide sequence of DNA or RNA between two species estimate the time they diverged from each other.

The number of mutation present in the nucleotide sequences of two specied provide this estimation.

The more the number of mutation the earlier they diverged from each other.

PilotLPTM [1.2K]3 years ago
3 0
I think the correct answer from the choices listed above is the third option. The DNA is used as a molecular clock in the sense that the <span>percent of carbon in DNA is compared between parent and offspring. Hope this answers the question. Have a nice day.</span>
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fungal and protist infections, especially those that are deeper than the skin, are especially hard to treat. why?​
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Answer and explanation:

Fungi and protists are eukaryotic. However, antibiotics selectively targets prokaryotic cells. Thus, the use of antibiotics for the treatment of fungal and protist infection is of no use at the first place. Secondly, if we use the other medicines that could kill the fungi/protists (e.g. fungicides), they could also kill the host's cells (animal's cells). This become further difficult if the infection is deeper in the skin. This is because, we would not be able to apply the medicine as direct application on skin but would give either intravenous or via food. This would increase the chance of imacting negatively the other organs/cells. The only option in such scenario is the surgery, which cannot be 100% effective because some spores may left even after the treatment.

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3 years ago
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3 years ago
The exchange of segments of dna between the members of a pair of chromosomes is called:
Kitty [74]

Answer:

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6 0
3 years ago
Where does a peptide bond form?
Paul [167]
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3 years ago
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dimaraw [331]

Answer:

Taking more samples from different parts of an acre.

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