Neanderthal sequences are typically found in the genome of Homo sapiens in long

ID: 282718 • Letter: N

Question

Neanderthal sequences are typically found in the genome of Homo sapiens in long stretches. The best explanation for this is

a) they were imported into the human genome relatively recently and have not had time to break apart.

b) strong selection for multiple Neanderthal genes has maintained chromosomal integrity in modern humans.

c) developmental correlations

d) this is an artifact of strong selection against some Neanderthal alleles in these regions which were not adaptive in modern humans.

e) genetic hitchhiking

Modern humans and Neanderthals separated from common lineage about 3-4 million year ago.

Early humans could mate with Neanderthals and exchange genes.

Neanderthals went extinct about 40000 years ago.

Thus, humans acquired long stretches of DNA from Neanderthals .

Ans:

? they were imported into the human genome relatively recently and have not had time to break apart.

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.