ICSE Class 10 Answered
A certain couple got only four daughters in a row and no son. Does it mean that the husband does not produce y bearing sperms ?? Explain...
Asked by chatterjee.chaitalichat | 05 Feb, 2020, 10:15: PM
Expert Answer
- Even if a couple has got four daughters in a row and no son, this does not mean that the husband does not produce y bearing sperms.
- It is essential that the y bearing sperm fertilises the egg to produce a son.
- When a sperm containing Y chromosome fertilizes the egg, the zygote would have one X chromosome and one Y chromosome (XY), and develop into a male child.
- And this is a chance event and cannot be controlled.
Answered by Sheetal Kolte | 06 Feb, 2020, 04:16: PM
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