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प्रश्न
Does a male child inherit X chromosome from his father? Justify.
उत्तर
XY chromosomes are present in male children. A boy is born when sperm from a Y chromosome unites with an ovum, whereas a girl is born when sperm from an X chromosome fuses with an ovum. This implies that the father cannot pass on the X chromosome to the son. The mother gives him the X chromosome.
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संबंधित प्रश्न
Write notes on sex determination in the unborn baby.
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Fill in the following blank with suitable word :
The...............chromosomes for a ............are XX whereas that for a ..............are XY.
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(a) copies of the same chromosome
(b) sex chromosomes
(c) two different chromosomes
(d) any chromosomes
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