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Problem: The following quote is describing a yellow-pigmented region of the egg of marine invertebrate. “An orange or yellow colored cytoplasm, initially uniformly distributed in egg, becomes localized to a crescent when the cortex rearranges right after fertilization. Cells that obtain the pigmented material become muscle, as indicated by the fate map of this embryo.” Which of the following best describes the content of this area?a. cytoplasmic determinant b. Hox gene c. Hormone d. endoderm e. blastopore

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The following quote is describing a yellow-pigmented region of the egg of marine invertebrate. “An orange or yellow colored cytoplasm, initially uniformly distributed in egg, becomes localized to a crescent when the cortex rearranges right after fertilization. Cells that obtain the pigmented material become muscle, as indicated by the fate map of this embryo.” Which of the following best describes the content of this area?

a. cytoplasmic determinant 

b. Hox gene 

c. Hormone 

d. endoderm 

e. blastopore

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