MCQ
Endogamy in plants is the term, where:
- AActual fusion never occur.
- BGametes tend to fuse but fusion product never survives.
- ✓Pollination between two flowers on the same plant.
- DSuch term is never known in fungi..
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$I.$ Natural selection is essential for evolution
$II.$ Natural selection do not include variations
$III.$ Concept of natural selection was given by Hugo de Vries
$IV.$ Mutation is the sudden inheritable change
$V.$ Synthetic theory is also called Neo-Darwinism theory of evolution The correct combination is a
Reason : Sex in humans is a polygenic trait depending upon a cumulative effect of some genes on $X-$ chromosome and some on $Y-$ chromosome.