1 How many chromosomes are there in the human (a) ovum (b) liver cell ?2In tobacco plant, the male gametes have 24 chromosomes. State the number of chromosomes in (i) egg nucleus, (ii) zygote, (iii) endosperm and (iv) leaf cell.
3 Aman with blood group A marries a woman with blood group O and their daughter has blood group O. Is this information enough to tell you which of the traits — blood group A or O is dominant? Why?
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