If a zygote has a high concentration of yolk that is unevenly distributed, then cytokinesis
A) takes place throughout the embryo, but cleavage divisions proceed more slowly in the vegetal region.
B) takes place throughout the embryo, but cleavage divisions proceed more slowly in the animal region.
C) takes place throughout the embryo, and cleavage divisions proceed at about the same rate in all parts of the embryo.
D) is confined to the yolk and produces a disc of cells between the yolk and the cavity.
E) is confined to the yolk-free portion of the zygote.
Correct Answer:
Verified
Q1: Of the main processes in embryogenesis, which
Q2: During cleavage, the
A) total amount of cytoplasm
Q3: During cleavage, cell division is rapid because
A)
Q4: In animal development, cleavage refers to
A) the
Q6: Which of the following statements about early
Q7: A blastula that is spherical in shape,
Q8: During gastrulation the blastocoel becomes
A) the coelom.
B)
Q9: Nervous tissue forms from
A) ectoderm.
B) mesoderm.
C) endoderm.
D)
Q10: You observe an animal embryo that is
Q11: You observe an animal embryo that is
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