MCQ
$STDs$ are also called
- A$VD$
- B$RTI$
- ✓Both $(a)$ and $(b)$
- DNone of these
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$(i)$ Queen Elizabeth shows a number of haemophilic descendents.
$(ii)$ Variation in blood group prevalences due to incomplete dominance.
$(iii)$ Drosophila has three pairs of autosomal chromosomes.
$(iv)$ In birds, female is heterozygous.