Q. Mendel published his work on inheritance of characters in 1865, but it remained unrecognised till 1900 due to the reason (s)
(A) Communication was not easy in those days.
(B) His contemporaries did not accept factors as discrete units of heredity.
(C) Mathematical approach to explain inheritance was totally new.
(D) Mendel could not provide any physical proof for the existence of factors

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Solution:

Correct answer is (d) All are correct.