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(a) Explain the following terms: (i) trait (ii) recessive gene (iii) test cross (iv) ...

(a) Explain the following terms:
(i) trait
(ii) recessive gene
(iii) test cross
(iv) heterozygous
(b) How do you determine whether a man with blood group '0' and married to a woman with blood group 'AB' is the father of a child with blood group 'AB' born to them?
(c) (i) In rabbit brown hair is dominant over white hair colour. How could you determine that a brown coloured male rabbit is homozygous?
(ii) What is the difference between the chromosome number of a gamete and that of the body cell of the same organism?




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