Question

Based on what evidence do we now think that

Homo sapiens

mated with other species of

Homo

, such as

Denisovans and Neanderthals?

a.

Sequences of mitochondrial genomes show that there has been some introgression of genes from other

species of

Homo

into

Homo sapiens

b.

Partial genome sequences from

Homo neanderthalensis

and Denisovans (~15% of the genome sequence)

began to show eviden

ce of introgression

c.

Full genome sequences from bone fragments of "archaic"

Homo

species from Africa show evidence of

introgression

d.

Alleles unique to

Homo

show evidence of introgression

e.

It was not until we obtained the whole genome sequences of ou

r sister species of

Homo

that we were able to

determine that a small proportion of human genomes (~1

-

5%) was derived from other species of

Homo

Answer 1