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TLS Online TPP Program

#Question id: 5213

Which of the following is a major distinction between a transposon and a retrotransposon?

#Unit 11. Evolution and Behavior

  1. A transposon always leaves a copy of itself at its original position and a retrotransposon does not.

  2. A retrotransposon always uses the copy-paste mechanism, while a transposon uses cut and paste mechanism.

  3. A transposon is related to a virus and a retrotransposon is not.

  4. A transposon moves via a DNA intermediate and a retrotransposon via an RNA intermediate.

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TLS Online TPP Program

#Question id: 28762

#Unit 2. Cellular Organization

For optimal activity, of lysosomal acid hydrolases they need to be___

a)Activation based on sensitivity to cleavage by endoglycosidase-D

b)Activation by proteolytic cleavage

c)Requires an acid environment
TLS Online TPP Program

#Question id: 28763

#Unit 2. Cellular Organization

Lysosome an interior pH of about_____
TLS Online TPP Program

#Question id: 28764

#Unit 2. Cellular Organization

Which of the following organelles membrane proteins, are highly glycosylated in compared to other organelles, which helps to protect them from the proteases?
TLS Online TPP Program

#Question id: 28765

#Unit 2. Cellular Organization

Which class of H+ ATPase in the lysosomal membrane, pumps H+ into the lysosome and maintaining its lumen at an acidic pH?
TLS Online TPP Program

#Question id: 28766

#Unit 2. Cellular Organization

Lysosome H+ pump are V-type ATPases and has a similar architecture with the_____
TLS Online TPP Program

#Question id: 28767

#Unit 2. Cellular Organization

Plant vacuole act as__
a) storage organelle for nutrients and waste products
b) degradative compartment
c) an economical way of decreasing cell size
d) a controller of turgor pressure