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What is the combination of sex chromosomes in a human female?

Answer and explanation

Correct answer: XX

Humans normally have one pair of sex chromosomes. In the standard chromosomal system, a human female has two X chromosomes, written as XX. Each egg carries an X chromosome, and an X-bearing sperm produces the XX combination after fertilisation. Therefore option A is correct. XY is the usual male combination, YY is not a viable standard human combination, and XO represents a chromosomal condition rather than the usual female pattern.

Related tags

Female ChromosomesSex DeterminationXxHeredity And EvolutionWorld Of LivingScienceClass 10 Mcq

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