Because DNA-DNA hybridization reveals subtle differences in genes, it is useful for differentiating organisms from different
A) domains.
B) families.
C) orders.
D) strains or species.

Question

Quizplus · Accepted Answer

DNA-DNA hybridization is most useful for differentiating strains or species of closely related organisms, as it can detect small genetic differences between them. While it can also be used to compare more distantly related organisms, such as those from different families or orders, the resolution may be lower and the results less reliable. Comparing DNA between organisms from different domains would be unlikely to yield meaningful results, as these groups are quite evolutionarily distinct.

Because DNA-DNA Hybridization Reveals Subtle Differences in Genes, It Is