#Question id: 28428
#Unit 5. Developmental Biology
Two-layered blastoderm epiblast and hypoblast is joined together at the marginal zone of the area opaca, and the space between the layer's forms ____
#Question id: 28429
#Unit 5. Developmental Biology
At which stage the primitive streak cells form a third layer that lies between the hypoblast and epiblast cells?
#Question id: 28430
#Unit 5. Developmental Biology
which of the following cells form a third layer that lies between the hypoblast and the epiblast cells ?
#Question id: 28431
#Unit 5. Developmental Biology
Which of the following cells direct the movement of the primitive streak in avian development?
#Question id: 28432
#Unit 5. Developmental Biology
During chick development, the elongation of the primitive streak coextensive with_______
#Question id: 28433
#Unit 5. Developmental Biology
Which of the following activity is first morphological sign of gastrulation in amniotes?