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TLS Online TPP Program

#Question id: 5222


 When does exon shuffling occur?

#Unit 9. Evolution & Diversity of Life Forms
  1. during splicing of DNA

  2. during mitotic recombination

  3. as an alternative splicing pattern in post-transcriptional processing

  4. as an alternative cleavage or modification post-translationally


Answer:- Option(s): 3


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#Question id: 28279

#Unit 5. Developmental Biology

Bindin receptors in S. purpuratus is___

TLS Online TPP Program

#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

TLS Online TPP Program

#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?

TLS Online TPP Program

#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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