Multiple Choice
The vegetal pole of the zygote differs from the animal pole in that
A) the vegetal pole has a higher concentration of yolk.
B) the blastomeres originate only in the vegetal pole.
C) the posterior end of the embryo forms at the vegetal pole.
D) the vegetal pole cells undergo mitosis but not cytokinesis.
E) the polar bodies bud from this region.
Correct Answer:

Verified
Correct Answer:
Verified
Q82: Even in the absence of sperm, metabolic
Q83: Compared to sea urchin eggs, those of
Q84: The term applied to a morphogenetic process
Q85: From earliest to latest, the overall sequence
Q86: The nematode Caenorhabditis elegans<br>A) is composed of
Q87: Meroblastic cleavage occurs in<br>A) sea urchins, but
Q88: The arrangement of organs and tissues in
Q89: At the moment of sperm penetration, human
Q90: At the time of implantation, the human
Q91: Fertilization normally<br>A) reinstates diploidy.<br>B) follows gastrulation.<br>C) is