MCQ
Which of the following is a diploid structure ?
- ASperm
- BOvum
- ✓Zygote
- DEndosperm
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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.