Which of the two, sperm or egg cell (ovum), decides the sex of the child?
Answers
Answer:
The sperm that fertilises the egg determines the baby's sex. If the sperm carries an X-chromosome the baby will be XX and will become a girl. If the sperm carries a Y-chromosome the baby will be XY, a boy.
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Sperm decides the sex of the child
Explanation:
The method of determining sex of an individual is done by noting the presence of sex chromosomes. Each human cell contains 23 pairs of chromosomes, of which 22 pairs are called autosomes. Autosomes are similar in both males and females and are responsible for the various characteristics of an individual. The 23rd pair is called the sex chromosomes and they differ for a male and a female. We have two types of sex chromosomes X and Y in humans. Females have XX chromosomes, while males have XY chromosomes.
When the sperm containing the X chromosome fertilizes the egg, then the zygote develops into a female.
When the sperm containing the Y chromosome fertilizes the egg, then the zygote develops into a male.
So the sperm decides the sex of the child.