Which feature characterizes β-catenin in frogs?
A) It can act as a transcription factor.
B) It is not present in the unfertilized egg.
C) It is found in lower concentrations in the gray crescent of a recently fertilized egg.
D) It is synthesized by glycogen synthase kinase-3 (GSK-3) .
E) It is found in higher concentrations on the ventral side of the embryo.
Correct Answer:
Verified
Q145: Which feature characterizes cleavage in most animals?
A)
Q146: Fertilization
A) allows several sperm to enter before
Q147: Which statement about frog eggs is true?
A)
Q148: Refer to the figure showing fertilization in
Q149: Of the following, which is usually contributed
Q151: Transformation of the zygote into a mass
Q152: At which location in the frog embryo
Q153: Which statement about the blastula stage is
Q154: Choose the correct pairing of characteristics of
Q155: Which statement about cleavage is true?
A) Discoidal
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