TLS Online TPP Program

#Question id: 12286


Keystone predators can maintain species diversity in a community if they

#Unit 10. Ecological Principles
  1. Competitively exclude other predators.
  2. Prey on the community's dominant species. 
  3. Allow immigration of other predators.
  4. Reduce the number of disruptions in the community.
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TLS Online TPP Program

#Question id: 3523

#Unit 8. Inheritance Biology

If the number of heterozygous pairs involved in a particular cross is three, the phenotype ratio obtained in their F2 generation will be-

TLS Online TPP Program

#Question id: 5679

#Unit 5. Developmental Biology

Following statements regarding to the molecular processes of capacitation.

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

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

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 izumo, which is critical in sperm-egg fusion.

which one of the following combinations is correct?

TLS Online TPP Program

#Question id: 23323

#Unit 1. Molecules and their Interaction Relevant to Biology

In correlation design of Ex Post Facto Research, we study

TLS Online TPP Program

#Question id: 17198

#Unit 7. System Physiology – Animal

What is the role of endorphins?

TLS Online TPP Program

#Question id: 24005

#General Aptitude

Suppose you are a fresh appointee in a school, a girl student stays in school hostel throughout summer-break and preparing for the competitive examination. Because she does not rely on officials so she requests to collect her post at your postal address. What would you like to do in that case?