In amphibians, a pigmented area called the ____ appears after fertilization.
A) gray matter
B) gray crescent
C) blastomere
D) cleavage plane
E) gray oocyte

Question

In amphibians, a pigmented area called the ____ appears after fertilization.
A) ​gray matter
B) ​gray crescent
C) ​blastomere
D) ​cleavage plane
E) ​gray oocyte

Quizplus · Accepted Answer

The gray crescent is a pigmented area that appears after fertilization in amphibian embryos. This area plays a vital role in determining the embryonic axis and the formation of the dorsal-ventral axis. The other choices (gray matter, blastomere, cleavage plane, and gray oocyte) do not accurately describe the pigmented area that appears in amphibian embryos after fertilization.

In Amphibians, a Pigmented Area Called the ____ Appears After