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Romashka [77]
2 years ago
14

Kristen wants to find out the sex of her fetus. When should she schedule her sonogram?

Biology
1 answer:
Pavlova-9 [17]2 years ago
6 0

Answer:

B, Kristen can find out the sex of her fetus using ultrasound as early as 14 weeks but most doctors schedule an ultrasound at around 18 to 21 weeks

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The question is incomplete. The complete question is:

A recent study compared the Homo sapiensgenome with that of Neanderthals. The results of the study indicated that there was a mixing of the two genomes at some period in evolutionary history. What data were discovered that suggested this conclusion

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B) a few modern H. sapiens with some Neanderthal sequences

Explanation:

The mixing of genomes of two species generally results in shared sequences and some common genetic traits in the descendants of these species. Mixing of genomes of <em>Homo sapiens</em> and Neanderthals would have resulted in the presence of some common gene sequences in their genomes. If the conclusion that the mixing of genomes of these two species has occurred is correct, some of the modern <em>Homo sapiens </em>should have the genome sequences that were otherwise present in the genomes of Neanderthals only but not in that of the <em>Homo sapiens</em>.

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