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TLS Online TPP Program

#Question id: 28811

Which of the following myosin move towards the (–) ve end of an actin filament?

#Unit 2. Cellular Organization
  1. Myosin I
  2. Myosin II
  3. Myosin V
  4. Myosin VI
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TLS Online TPP Program

#Question id: 4837

#Unit 8. Inheritance Biology

This is the reason why Mendel did not recognizelinkage phenomenon in his experiments
TLS Online TPP Program

#Question id: 34165

#Unit 7. System Physiology – Animal

Following statements are regarding thyroid hormone biosynthesis?
I. The basolateral membranes of thyrocytes facing the capillaries contain a antiporter that transports two Na+ ions and one I– ion into the cell with each cycle, against the electrochemical gradient for I–.
II. Na+/I– symporter (NIS) is capable of producing intracellular I– concentrations that are 20–40 times as great as the concentration in plasma.
III. TSH induces both NIS expression and the retention of NIS in the basolateral membrane, where it can mediate sustained iodide uptake.
TLS Online TPP Program

#Question id: 34116

#Unit 2. Cellular Organization

A. The positive charge on lysine is neutralized upon acetylation
B. Methylated lysine and arginine are neutral.
C. Lysine can be mono-, di-, or triacetylated
D. Arginine can be mono or diacetylated. 
E. Both Lysine and Arg can be acetylated

Choose true and false
TLS Online TPP Program

#Question id: 32579

#Unit 2. Cellular Organization

In many cells, the minus ends of microtubules are stabilized by association with:
a. Capping proteins
b. Kinesin-13
c. Dynein
d. γ-TuRC
TLS Online TPP Program

#Question id: 5664

#Unit 5. Developmental Biology

Following statements are regarding to gamete fusion and the prevention of polyspermy in mammals.

A. In mammals, it is not the tip of the sperm head that makes contact with the egg but the side of the sperm head.

B. The junction between the inner acrosomal membrane and the sperm cell membrane is called the acrosomal region, and this is where membrane fusion between sperm and egg begins.

C. Sperm-egg fusion appears to involve several proteins, two of which are Izumo, in the oocyte membrane, and Juno, in the acrosomal membrane.

D. These fusion proteins bind together and appear to recruit other proteins to make an adhesion and fusion complex.

Which of the following statements are correct?