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TLS Online TPP Program

#Question id: 2481

A drug that prevents microtubules from depolymerizing could be used to:

#Unit 2. Cellular Organization

  1. stimulate cytokinesis.

  2. inhibit mitosis.

  3. promote cell division.

  4. treat Alzheimer’s disease.

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TLS Online TPP Program

#Question id: 10431

#Unit 6. System Physiology – Plant

The signal transduction pathways that lead to physiological or developmental responses, these responses fall into two general categories;
a) Ion fluxes, which cause relatively rapid turgor responses
b) the possible chain of events constituting the signal transduction pathways that bring about these effects
c) Altered gene expression, which typically results in longer-term responses
d) Gene expression altered shows short-term response
Which of the following combinations from above given general categories is true?
TLS Online TPP Program

#Question id: 34135

#Unit 7. System Physiology – Animal

Glucagon increases glycogenolysis in liver cells but ACTH does not because
TLS Online TPP Program

#Question id: 24631

#Unit 2. Cellular Organization

Which of the following is correctly representing gene capacity of human if average gene size is 3000 base pairs
TLS Online TPP Program

#Question id: 2822

#Unit 2. Cellular Organization

Transposition by a bacterial insertion element

a. occurs at a frequency of approximately 1 in 10^3 cells per generation.

b. can inactivate an essential gene.    

c. is mediated through a RNA intermediate.

d. requires the enzyme transposase
TLS Online TPP Program

#Question id: 5659

#Unit 5. Developmental Biology

 Following are the statements related to mammalian chaemotaxis .
A. During chaemotaxis, the oocyte and its accompanying cumulus cells secrete molecules that attract only uncapacitated sperm toward the egg during the last stages of sperm migration.
B. These chaemotactic compound are hormone progesterone, which is made by the cumulus cells.
C. Progesterone has been shown to bind to a receptor that activates Ca2+ channels in the cell membrane of the sperm tail, leading to sperm hyperactivity and provides directional cue.
D. Cumulus cells also secrete a substance, CRISP1, that attracts sperm and hyperactivates them through CatSper channels similar as in sea urchins.
Which of  the following statement is incorrect?