Whereas human, dog, and mouse are all in the same size range (), the chicken genome is onl
y one-third this size. An extreme example of genome compression is the pufferfish Fugu rubripes . The fish’s tiny genome is about _____ the size of mammalian genomes, largely because of the small size of its intergenic regions, which are missing nearly all of the repetitive DNA that makes up a large portion of most mammalian genomes.
A.1/10
B.1/8
C.1/6
D.1/5