In Drosophila,the vast majority of A-P axis genes that contribute to pattern formation encode:
A)transcription factors.
B)histones.
C)sugar-utilizing enzymes.
D)operons.
E)ligands.

Question

Quizplus · Accepted Answer

Transcription factors are proteins that bind to DNA and regulate gene expression. In Drosophila, the A-P axis genes that contribute to pattern formation encode transcription factors that control the expression of downstream genes involved in patterning. Histones are not directly involved in pattern formation, sugar-utilizing enzymes are also not involved in patterning, operons are not genes but rather a group of genes that are regulated together, and ligands are signaling molecules that are involved in communication between cells but not directly in patterning.

In Drosophila,the Vast Majority of A-P Axis Genes That Contribute