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Q1. Transitional forms are view in the fossil record which links all of such groups except:

A. Birds and reptiles.
B. Reptiles and amphibians.
C. Fish and amphibians.
D. Mammals and reptiles.
E. Mammals and birds.

Q2. Anatomical aspects which are reduced and functionless in organisms however associated to functional organs in associated organisms are termed:

A. Vestigial.
B. Homologous.
C. Analogous.
D. Polygenic.
E. Sympatric.

Q3. A random modification in the series of DNA nucleotides which provides a new variant allele is:

A. Disruption.
B. Polymorphism.
C. Gene frequency.
D. Gene mutation.

Q4. Which of the given conditions contributes to the evolution?

A. Mutations
B. Gene flow
C. Genetic drift
D. Natural selection
E. All the above

Q5. Raw material for the evolutionary change is:

A. Genetic mutation.
B. Genetic drift.
C. Gene flow.
D. Non-random reproduction.
E. Natural selection.

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  • Category:- Biology
  • Reference No.:- M99322

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