Hox genes a. appear to function in similar ways across diverse groups of organisms. b. control the development of language in humans. c. control which amino acids get plugged into polypeptide chains. d. function only in fruit flies.

The correct option is A.

Explanation:

Here is the complete sentence: Hox genes APPEAR TO FUNCTION IN SIMILAR WAYS ACROSS DIVERSE GROUP OF ORGANISMS.

Hox genes refer to a group of transcription factor genes that control and regulate animals development. Hox genes function by specifying segment identity, that is, they are responsible for determining the parts of the embryo in which different structures will form. For instance, the genes determines the part of the embryo that will develop into head, legs, stomach, etc.

Hox genes are usually clustered together in a particular spot on the chromosomes and they are present in different forms of animals; the function of hox genes in these animals are similar.

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