In xenopus, result of tissue transplantation during early and late gastrulae

(A) Cells of early newt gastrula exhibit conditional development.

(B) Cells of early newt gastrula exhibit autonomous development

(C) Cells of late newt gastrula exhibit conditional development.

(D) Cells of late gastrula exhibit autonomous development.

The correct inferences are:

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#Question id: 28280

#Unit 5. Developmental Biology

 Species specific recognition of sea urchin gametes can occur at the various level such as____ 

a) sperm attraction 

b) sperm activation

c) the acrosome reaction

d) sperm adhesion

e) Cortical Granules reaction

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#Question id: 28281

#Unit 5. Developmental Biology

Fusion is an active process, often mediated by

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#Question id: 28282

#Unit 5. Developmental Biology

In sea urchins, which of the following protein plays a second role as a  fusogenic protein? 

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#Question id: 28283

#Unit 5. Developmental Biology

Following statements are related to fast block to polyspermy, which statement is incorrect?

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#Question id: 28284

#Unit 5. Developmental Biology

In the Fast block to polyspermy, after the binding of the first sperm, the membrane potential shifts from

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#Question id: 28285

#Unit 5. Developmental Biology

If the egg cell membrane potential is positive resting potential, then_____