ICSE Class 10 Biology
Question 8 of 11
Genetics — Some Basic Fundamentals — Question 11
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Question Susheel, a colourblind man, is married to Susheela, a woman with normal vision. Which of the following combinations would be possible in their children?
- Colourblind daughters and colourblind sons
- Normal daughters and normal sons
- Carrier daughters and normal sons
- Carrier daughters and colourblind sons
Carrier daughters and normal sons
Reason — Since the mother is normal so the daughters will be carrier due to the X chromosome received from father but sons will be normal.
| Colour-blind father (X°Y) | ||
|---|---|---|
| X° | Y | |
| Normal Mother (XX) | XX° Carrier daughter | XY Normal son |
| XX° Carrier daughter | XY Normal son | |