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TLS Online TPP Program

#Question id: 2665


A transposon ____________.

#Unit 2. Cellular Organization
  1. is referred to as a jumping gene

  2. is DNA that can remove itself from the chromosome and insert itself elsewhere

  3. is used to regulate surface proteins in Salmonella

  4. all of the above


Answer:- Option(s): 4


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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

TLS Online TPP Program

#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? 

TLS Online TPP Program

#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

TLS Online TPP Program

#Question id: 28285

#Unit 5. Developmental Biology

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

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