Multiple Choice
Which feature characterizes the chick gastrula?
A) It is a round ball of cells with a central cavity.
B) The blastocoel is located between the epiblast and the hypoblast.
C) The hypoblast does not contribute to the extraembryonic membranes.
D) The hypoblast is located above the epiblast.
E) The embryo proper develops from the hypoblast.
Correct Answer:
Verified
Correct Answer:
Verified
Q130: A woman ovulates two eggs that are
Q131: If you experimentally removed the GSK-inhibiting protein
Q132: Epiboly<br>A) is a form of convergent extension
Q133: Which are least likely to be cytoplasmic
Q134: Experimental overexpression of β-catenin in another region
Q136: Which feature characterizes the trophoblast?<br>A) Trophoblast cells
Q137: The mammalian blastocyst differs from a frog
Q138: Which feature characterizes complete cleavage?<br>A) It occurs
Q139: Which feature characterizes cleavage in most animals?<br>A)
Q140: A researcher who wants to block initiation