Biology
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
Answer
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 | |
Related Questions
In the human male, a sperm contains autosomes and :
- X and Y chromosomes
- Only X chromosome
- X or Y chromosome
- Only Y chromosome
If the mother is normal and the father is haemophilic, then their two daughters will be :
- Normal
- Haemophilic
- Carrier
- None
Assertion. Heredity is the basic fundamental unit of Genetics.
Reason. Genes carry hereditary information from the offsprings to their parents.
- Both A and R are True
- Both A and R are False
- A is True and R is False.
- A is False and R is True.
Assertion. Karyotype is the division of nucleus during cell-division.
Reason. Karyon means nucleus and type explains the number, shape and size of the chromosome.
- Both A and R are True
- Both A and R are False
- A is True and R is False.
- A is False and R is True.