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TLS Online TPP Program

#Question id: 12662

The Allee effect is used to describe a population that

#Unit 10. Ecological Principles
  1. Has become so small that it will have difficulty surviving and reproducing. 
  2. Has become so large it will have difficulty surviving and reproducing.
  3. Approaches carrying capacity.
  4. Exceeds carrying capacity.
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TLS Online TPP Program

#Question id: 5733

#Unit 8. Inheritance Biology

In individuals heterozygous for a chromosome inversion, the homologous chromosomes form a loop in prophase I of meiosis.

Which of the following is effect of inversion?

A. A dicentric and an acentric chromosome in meiosis I as the chiasmata gets terminated when inversion includes centromere  

B. Appearance of deletion and duplication in both the cross over products chromosomes when centromere outside of inversion region  

C. All recombinant gamete are non-viable gametes when single crossing over within inverted region; irrespective to paracentric or pericentic inversion

D. Nonviable gametes are usually produced, resulting in a depression in observed recombination frequencies.

Which of the above statements are correct?
TLS Online TPP Program

#Question id: 15607

#Unit 12. Applied Biology

In gene transformation over high expression can be achieved by expressing the gene 
1. Inducible promoter
2. Constitutive  promoter
3. Terminator sequence
4. Increasing copy no. of gene
Which of the following are correct
TLS Online TPP Program

#Question id: 1443

#Unit 4. Cell Communication and Cell Signaling

Which of the following is(are) a tumor suppressor gene?
TLS Online TPP Program

#Question id: 28951

#Unit 7. System Physiology – Animal

Principal signaling pathway activated by the growth hormone, that is___
TLS Online TPP Program

#Question id: 11164

#Unit 2. Cellular Organization

Cellular membranes are self-sealing— if they are punctured or disrupted mechanically, they quickly and automatically reseal. What properties of membranes are responsible for this important feature?