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KIM [24]
3 years ago
5

Based on genomic studies, when did a change in gene sequences occur that lead to a change in the way that the brain processes sp

eech? between 1 and 6 million years ago between 4 and 9 million years ago between 10,000 and 100,000 years ago approximately 25,000 years ago approximately 12,000 years ago
Biology
2 answers:
xxTIMURxx [149]3 years ago
6 0
The answer for this question would be the second option. Genomic studies cover the analysis of the changes of genome by scanning the markers across complete sets of DNA. Based on these studies, the change in gene sequences happen that resulted to a change in the way that the brain interprets speech in between 4 and 9 million years ago.
patriot [66]3 years ago
3 0

Answer:

Option B, between 4 and 9 million years ago

Explanation:

It took million of years for human being to evolve from its ancestral animals. The time required to evolve was basically due to the time consumed in upgrading the cognitive thinking process of human being.

Nearly 2 million years were required to develop the cerebral cortex  and hence expand its abilities.

A gene named FOXP2 evolved by positive selection  and played an important role in the evolution of human speech and language.  It took nearly the same time by humans to develop speech as the time required by human to evolve from chimpanzees.

Hence, option B is correct

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