Question

While inspecting the genome sequence of your newly discovered organism, you note that while the genome overall is 50% G + C, there is a cluster of genes comprising about 20,000 bp that is 64% G + C. The best explanation for this is:____________A) this represents normal variation within a chromosome.B) the 20,000 bp segment likely contains a cluster of housekeeping genes.C) the 20,000 bp segment is an adaptation to a more thermophilic environment.D) the 20,000 bp segment is a recent acquisition via horizontal gene transfer.

Answer 1

Answer:

D

Explanation:

1. As given, the  overall genome contain 50% G+C.

And the concept is that G is always pairs with C.

and A is always pairs with T.

So, in a dsDNA,  A+G= T+C

2. As there that, there is a cluster of genes comprising about 20,000 bp that is 64% G + C so this so that the 20,000 bp segment is a recent acquisition via horizontal gene transfer.