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4.Principles of Inheritance and Variation
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Mendel published his work on inheritance of characters in $1865$ but it remained unrecognised till $1900$ because
$(a)$ He could not provide any physical proof for the existence of factors
$(b)$ His concept of factors as stable, discrete units that controlled the expression of traits did not find acceptance from the contemporaries
$(c)$ Mendel's approach of using mathematics to explain biological phenomena was totally old
$(d)$ Communication was not easy (as it is now)
A
$(a), (b) \;\& \;(c) $are correct
B
$(c) \;\& \;(d)$are correct
C
$(a), (b) \;\&\; (d)$ are correct
D
Only $(a)$ is correct
Solution
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Standard 12
Biology
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