Which statement is true about homeotic genes?
A) Each homeotic gene has a variable region and a sequence called the homeobox that is very similar in all such genes.
B) They have been found in almost all eukaryotic organisms.
C) All homeotic genes are thought to be derived from an original DNA sequence that has been highly conserved in evolution because of its importance to animal evolution.
D) They are sequentially arranged on the chromosome in the same sequence they are activated during development of the embryo in Drosophila.
E) All the answer choices accurately describe homeotic genes.

Question

Quizplus · Accepted Answer

Homeotic genes share a common sequence known as the homeobox, which is highly conserved across different species, indicating their crucial role in development. These genes have indeed been identified in a wide range of eukaryotic organisms, supporting the idea that they originate from a highly conserved ancestral sequence important for animal evolution. Additionally, in organisms like Drosophila, the physical arrangement of homeotic genes on the chromosome mirrors the order in which they are expressed during embryonic development, reflecting their role in specifying the body plan.

Which Statement Is True About Homeotic Genes