OBJECTIVE LIFE SCIENCE
DEVELOPMENTAL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The primitive streak of chick embryo can be compared to the blastopore.
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TRUE
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FALSE
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -The blastopore is a pit in the side of the embryo, through which cells fated to be endodermal flow so that they leave the outer surface of the embryo and can create a new inner surface; From: Mechanisms of Morphogenesis (Second Edition), 2013.
Detailed explanation-2: -Formation of the primitive streak (bird & mammal). Cells converge from the lateral regions and a depression forms in the center or the primitive streak: the primitive groove. The groove acts somewhat like a blastopore since it is through the groove that cells pass into the blastocoel.
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