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Mumz [18]
4 years ago
11

When researchers use a molecular clock what are they measuring?

Biology
2 answers:
choli [55]4 years ago
7 0
Measures time from random changes (mutations) 
Tasya [4]4 years ago
5 0

They are measuring the time that two species have been evolving independently.

A molecular clock is a method that is used by scientists to estimate the time that two species evolve separately using the knowledge of the DNA differences. To carry out this method, scientists use (i) an estimate of the number of genetic mutations that occur between two closely related species and (ii) the average genetic mutation rate to estimate the time in prehistory when the two species split.

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Compare and contrast mutualism, commensalism, and parasitism.
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Mutualism is a symbiotic relationship in which both species benefit. Commensalism is a symbiotic relationship in which one species benefits while the other species is not affected. Parasitism is a symbiotic relationship in which one species (the parasite) benefits while the other species (the host) is harmed.

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Mariulka [41]

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In the ABO series, the gene for blood type O is<u><em> recessive</em></u>, while A and B are <u><em>dominant </em></u>genes, and AB is <u><em>co-dominant</em></u>.

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