MCQ
In majority of angiosperms
- Aegg has a filiform apparatus
- Bthere are numerous antipodal cells
- ✓reduction division occurs inthe megaspore mother cells
- Da small central cell is present in that embryo sac.
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$I.$ Haemophilia is a sex-linked recessive disease
$II.$ Down's syndrome is due to aneuploidy
$III.$ Phenylketonuria is an autosomal dominant gene disorder
$IV.$ Phenylketonuria is an autosomal recessive gene disorder
$V.$ Sickle cell anaemia is an $X$-linked recessive gene disorder