A man who has four sons and one daughter believes that he produces more of
sperms with Y as a chromosome. Justify whether he is right or wrong in
thinking this way.
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Answers
Answer:
we don't agree because when spem fertilises with X ova it has 50℅ chance of being an X sperm. which will develop into girl child whereas it has 50℅ chance of being a Y sperm which will develop into a boy child . his asumption is wrong as the chances are equal for both X and Y sperm
Answer:
The man is wrong for thinking that he produces more sperms with the Y chromosome. Out of all the sperms produced by a male, 50% will have X chromosome and 50% will have Y chromosome. The sex of the baby depends on which sperm is able to fertilize the egg.
Explanation:
The process of gametogenesis (generation of sex cells - egg and sperm) occurs in both males and females. The females always produce eggs with X chromosomes and the males produce sperms with 50% of X chromosomes and 50% of Y chromosomes. If the sperm with X chromosome fertilizes egg with X chromosome, the resulting zygote (XX) will be a female. Whereas, if the sperm with Y chromosome fertilizes egg with X chromosome, the resulting zygote (XY) will be a male. Therefore, in every conception there is a 50% chance of male and 50% chance of female foetus.