Crossing over is advantageous because it brings about
Variation
Linkage
Inbreeding
Stability
The important sources of variation are mutations and recombinations (crossing over).
Assertion : Persons suffering from haemophilia fail to produce blood clotting factor $VIII$.
Reason : Prothrombin producing platelets in such persons are found in very low concentration.
Who gave first experimental evidence of the polygenic concept of inheritance
Sex linked characters have one distinct feature
Haemophilia is a
Number of linkage group in Pisum sativum is
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