NEET Biology question

Primary source of allelic variation is

(A)Due to long periods of evolutionary changesCorrect
(B)Due to abrupt mutations
(C)Suddenly on earth
(D)By seed dispersal

Answer: (A)

Solution

Diversification in plants life appeared due to long periods of evolutionary changes. The evolutionary changes sequence is Bryophyte (thalloid, no vascular tissue)→ Pteridophytes

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Question ID VK-121141