TLS Online TPP Program

#Question id: 32354


In Glucokinase-driven glycolysis
1. ATP/ADP ratio which results in 
2. K+ channel opening 
3.  opening of Ca2+ channels 
4. secretion of insulin by the b-cells. 
In this way, the action of glucokinase in the b-cells results in glucose uptake.
Choose correct combination of true & false

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. TFTT
  2. TTTF
  3. FTTF
  4. FFTT
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TLS Online TPP Program

#Question id: 14922

#Unit 8. Inheritance Biology

Which is an example of a study that might be done by a transmission geneticist?

TLS Online TPP Program

#Question id: 32411

#Unit 1. Molecules and their Interaction Relevant to Biology

Activity of citrate synthase from pig heart tissue shows a sigmoid dependence on the concentration of acetyl-CoA. Which of the following statement is correct.


TLS Online TPP Program

#Question id: 14522

#Unit 13. Methods in Biology

A sample space has two events A and B such that probabilities  

TLS Online TPP Program

#Question id: 5657

#Unit 5. Developmental Biology

Following statements regarding to the molecular processes of capacitation.

A. The sperm cell membrane is altered by the removal of cholesterol by albumin proteins in the female reproductive tract.

B. Particular proteins or carbohydrates on the sperm surface are lost during capacitation.

C. The membrane potential of the sperm cell becomes more positive as potassium ions leave the sperm. This change in membrane potential may allow calcium channels to be opened and permit calcium to enter the sperm.

D. Calcium and bicarbonate ions are critical in activating cAMP production and in facilitating the membrane fusion events of the acrosome reaction.

E. As a result of cAMP formation, protein phosphorylation occurs. Once they are phosphorylated, some proteins migrate to the surface of the sperm head. One of these proteins is juno, which is critical in sperm-egg fusion.

which one of the following combinations is correct?

TLS Online TPP Program

#Question id: 33478

#Unit 2. Cellular Organization

Find true and false statements
A. Comparisons of related genes in different species show that the sequences of the corresponding exons are usually conserved
B. when two genes are related, the relationship between their exons is closer than the relationship between their introns.
C. The sequences of the introns are much less similar.
D. Introns evolve much more rapidly than exons because of the lack of selective pressure to produce a polypeptide with a useful sequence.