CBSE Class 10 Science 2019 · Paper 31/1/1 · Question 12(b)
List two differences between acquired traits and inherited traits by giving an example of each.
Answer
Acquired traits (swimming skill) are not passed on, as germ-cell DNA is unchanged; inherited traits (eye colour) are controlled by germ-cell DNA.
(1) Acquired traits are not passed on from one generation to the next; inherited traits are passed from parents to their offspring.
(2) Acquired traits bring about no change in the DNA of the germ cells (they change only body cells); inherited traits are controlled by the DNA (genes) of the germ cells.
Examples: acquired trait, a skill such as swimming or cycling; inherited trait, eye colour (or free or attached earlobes). Any other correct difference and example is equally acceptable.
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