Q15 of 58 Page 1

List three distinguishing features, in tabular form, between acquired traits and the inherited traits.



















Acquired Traits



Inherited Traits



1. Acquired traits are not inherited but develop during the lifetime of an individual.



1. Inherited traits are those which are obtained from parents or caused by a change in its genes (or DNA).



2. These cannot be passed on to the future generations.



2. These can be passed to the future generations.



3. These cannot direct evolve. For example- muscular body of wrestler.



3. These can directly evolve. For example- fused ear lobes.




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In one of his experiments with pea plants Mendel observed that when a pure tall pea plant is crossed with a pure dwarf pea plant, in the first generation, F1, only tall plants appear.

(a) What happens to the traits of the dwarf plants in this case?


(b) When the F1 generation plants were self-fertilized, he observed that in the plants of second generation, F2, both tall plants and dwarf plants were present. Why it happened? Explain briefly.

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