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Assertion : Human ancestors never used their tails and so the tail expressing gene has disappeared in them.Reason : Lamarck's theory of evolution is popularly called theory continuity of germ plasm.

  1. A
    (a) Both Assertion & Reason are true and the reason is the correct explanation of the assertion
  2. B
    (b) Both Assertion & Reason are true but the reason is not the correct explanation of the assertion
  3. C
    (c) Assertion is true statement but Reason is false
  4. D
    (d) Both Assertion and Reason are false statements

Solution & Step-by-step Explanation

While the human tail has largely disappeared over evolutionary time, remnants still occasionally appear (atavism). The reason is false because the "theory of continuity of germplasm" was proposed by August Weismann, not Lamarck. Lamarck's theory is known for the inheritance of acquired characteristics.

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Assertion : Human ancestors never used their tails and so the tail expressing gene has disappeared in them.Reason : Lamarck's theory of evolution is popularly called theory continuity of germ plasm.
A
(a) Both Assertion & Reason are true and the reason is the correct explanation of the assertion
B
(b) Both Assertion & Reason are true but the reason is not the correct explanation of the assertion
C
(c) Assertion is true statement but Reason is false
D
(d) Both Assertion and Reason are false statements

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EvolutionLamarckismAtavism

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