(a) A couple are parents to 4 daughters in a sequence, and do not have any son. Does this indicate that the husband…

CBSE Class 10 Science PYQ · Heredity · Sex determination · 3 Marks · March 2026 · Standard

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183 Marks · March 2026 · Standard
(a) A couple are parents to 4 daughters in a sequence, and do not have any son. Does this indicate that the husband does not produced Y-chromosome bearing sperms ? Explain.
(b) What are the chances of this couple bearing yet another daughter ? Show with the help of a cross.
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