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Question : "It is a matter of chance whether a couple will have a male or a female child." Justify this statement by drawing a flowchart.

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Solution :(i) Flowchart

(ii) Justification Women PRODUCE only one type of OVUM (carrying X chromosome) and MALES produce two TYPES of sperms (carrying either X or Y chromosome) in equal proportions. So the sex of a child is a matter of chance DEPENDING upon the type of sperm fertilizing the ovum.


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