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Doctors Medicines MCQs Q&A

  1. Isotropic phylogeny
  2. Genome sequencing phylogeny
  3. Atomic phylogeny
  4. Molecular phylogeny
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Option 4 : Molecular phylogeny

The correct answer is Molecular phylogeny.

Explanation:

  • Phylogeny is the evolutionary history of a species or group. 
  • The changes in the DNA (deoxyribonucleic acid) during cell division lead to changes in the proteins that are made from this new DNA.
  • These changes would accumulate from one generation to the next.
  • Molecular phylogeny is used to trace the changes in DNA backwards in time.
  • Molecular phylogeny approach is based on the idea that organisms are more distantly related will accumulate a greater number of differences in their DNA.
  • This method is now extensively used to define evolutionary relationships.
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