Question

In molecular biology, the more homologous genes or orthologous genes that are found to be different in two different species can be inferred as?

A) The location of the species can show a direct common ancestor of the different species.
B) The more differences that are found in their DNA the more distantly the species are related
C) The more differences that are found in the DNA of the species the more closely related they are.
D) The species have a better chance of sharing a common ancestor by studying their structures and not their genes.

Answer 1

The answer for USATEST prep is B

Step-by-step explanation:

i guessed got it right

Answer 2

B) The more differences that are found in their DNA the more distantly the species are related

Step-by-step explanation:

Genes are encoded information (as DNA), within the genome, which are used to produce specific proteins that when expressed, influence an organism's phenotype or physical makeup. Multiple forms of genes may exist as alleles sometimes on different chromosomes; they contribute to genetic variation, which may eventually lead to forming new species.

Related organisms have similar forms of genes which may be

• homologous (sharing the same ancestry)
• orthologous (homologous genes which arise from or after speciation)

Differences in homologs are often used to determine instances of species divergence, and map out evolutionary relationships.