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#Question id: 31301


Which of the following acts as the equivalent of the amphibian Nieuwkoop center in chick?

#Unit 5. Developmental Biology
  1. Koller’s sickle
  2. Posterior marginal zone
  3. Hensen’s node
  4. Blastocoel

Answer:- Option(s): 2


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TLS Online TPP Program

#Question id: 3296

#Unit 11. Evolution and Behavior

Some beetles and flies have antler-like structures on their heads, much like male deer. The existence of antlers in beetle, fly, and deer species with strong male-male competition is an example of

TLS Online TPP Program

#Question id: 3297

#Unit 11. Evolution and Behavior

Which of the following is incorrect statement?

TLS Online TPP Program

#Question id: 3298

#Unit 11. Evolution and Behavior

Which of the following is incorrect statement?

TLS Online TPP Program

#Question id: 3299

#Unit 11. Evolution and Behavior

There are four alleles, A1, A2, A3 and A4 in equal abundance in frequency. Hardy-Weinberg equilibrium frequencies of the total heterozygote would be

TLS Online TPP Program

#Question id: 3300

#Unit 11. Evolution and Behavior

In a population individuals having heterozygous phenotype are more favored than either homozygous, under such condition-

TLS Online TPP Program

#Question id: 3301

#Unit 11. Evolution and Behavior

 Following statement is correct regarding convergent evolution.

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