MCQ
Female gametophyte of angiosperms is represented by:
- AOvule.
- BEmbryo sac.
- CMegaspore mother cell.
- DNucellus.
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$II.$ Inheritance of acquired characters
$III.$ Branching descent
$IV.$ Natural selection
$V.$ Mutation
$VI.$ Reproductive isolation
The two key concepts of Darwinism from the given options are
| Column $- I$ | Column $- II$ |
| $(a)$ Copper releasing $IUD$ | $(1)$ Diagnosis of chromosomal abnormalities |
| $(b)$ Hormone releasing $IUDI$ | $(2)$ Saheli |
| $(c)$ Pills | $(3)\; LNG -20$ |
| $(d)$ Amniotic fluid test | $(4)$ Multiload $-375$ |