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How is the sex of a newborn determined in humans?

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How is the sex of a newborn determined in humans?

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Solution

Sex of a newborn in humans is genetically determined, that is, genes inherited from the parents determine the sex of a baby. If a newborn inherits one X chromosome from mother and X chromosome from father, this newborn will become a girl and if a newborn inherits one X chromosome from mother and Y chromosome from father, this newborn will become a boy.

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Chapter 9: Heredity and Evolution - Short Answer Questions [Page 77]

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NCERT Exemplar Science Exemplar Class 10
Chapter 9 Heredity and Evolution
Short Answer Questions | Q 26. | Page 77

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