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TLS Online TPP Program

#Question id: 3313

Which one of the following statement is incorrect for the process of speciation?

#Unit 11. Evolution and Behavior

  1. Parapatric speciation may occur when, the population is continuous, population does not mate randomly due to long distance.

  2. Allopatric speciation may occur between geographically separated populations.

  3. Peripatric speciation is a mode of speciation in which a new species is formed from an geographically isolated population

  4. Sympatric speciation may also have been common in fish due to preferred microhabitat within same range

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TLS Online TPP Program

#Question id: 13178

#Unit 10. Ecological Principles

Turnover of water in temperate lakes during the spring and fall is made possible by which of the following? 
TLS Online TPP Program

#Question id: 1526

#Unit 4. Cell Communication and Cell Signaling

Following statements are regarding to apoptosis.

A. In the worm apoptotic pathway, CED-3 (caspase-9 in mammals) is a protease required to destroy cell components during apoptosis.

B. CED-4 (Apaf-1) was able to accelerate the autoproteolytic cleavage and activation of purified CED-9

C. Once EGL-1 causes dissociation of the CED-4/CED-9 complex, the released CED-4 dimer joins with three other CED-4 dimers to make an octamer, which then activates CED-3

D. Many apoptotic stimuli lead to damage of the outer mitochondrial membrane, causing release into the cytosol of several proteins that stimulate apoptosis. In particular, cytochrome c released from mitochondria activates Apaf-1, which in turn activates caspase-3 and 7.

Which of the following combination is incorrect?
TLS Online TPP Program

#Question id: 12448

#Unit 10. Ecological Principles

When members of a population move out of a given area, it is called
TLS Online TPP Program

#Question id: 31082

#Unit 4. Cell Communication and Cell Signaling

Family of IP3-gated Ca+2 channel proteins is similar in structure to the family of voltage-sensitive Ca+2 channels that are called:
TLS Online TPP Program

#Question id: 5690

#Unit 8. Inheritance Biology

Species I is diploid (2n =4) with chromosomes AABB; related species II is diploid (2n = 6) with chromosomes MMNNOO .Which of the following chromosome  in allotriploid individuals?