In studies of gene expression, which of the following would be the least likely observation?
A) Expression of a gene important in developmental processes varies with temperature.
B) One insect species has a pair of wings that its relatives lack; these evolved as the result of a radically different developmental process.
C) A species of fish is much larger than its relatives because of the much earlier expression of a gene that affects bone growth.
D) The amino acid sequence of a Hox gene protein is extremely similar in nematodes and humans.
E) The expression pattern of a gene important in development is more restricted in its spatial result in one rodent species than in all others; this leads to that species having a narrower face.

Question

Quizplus · Accepted Answer

Radically different developmental processes leading to new structures like wings are less likely compared to variations in gene expression or timing affecting size or shape.

In Studies of Gene Expression, Which of the Following Would