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Evolution — BIOLOGY STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceBIOLOGYEvolution2 Marks
Question
State Hardy-Weinberg principle. Name any two factors which affect it.
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Answer

Hardy-Weinberg principle states that allele and gene frequencies in a population will remain constant from one generation to the next if certain conditions are kept constant. These conditions are :
(i) Population is large
(ii) Random mating
(iii) Absence of mutation
(iv) All members in a population are living and reproduction rate is constant.
Two factors that affect Hardy-Weinberg equilibrium are : 
(i) Mutations, (ii) Gene Migration.

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