| Directions : (26 - 30) |
| Read the passage given below and answer the following questions. |
| Haemophilia or Bleeder's Disease is sex-linked recessive disease, which shows its transmission from unaffected or normal carrier female to some of the male progeny has been widely studied. In this disease, a single protein that is a part of the cascade of proteins involved in the clotting of blood is affected. Due to this, in an affected individual a simple cut will result in non-stop bleeding. The heterozygous female or carrier for haemophilia may transmit the disease to sons. The possibility of a female becoming a haemophilic is extremely rare because mother of such a female has to be at least carrier and the father should be haemophilic i.e., unviable in the later stage of life. The family pedigree of Queen Victoria (1819-1901) shows a number of haemophilic descendants as she was a carrier of the disease. |
A) X Chromosome in male
B) X Chromosome in female
C) X Chromosome in both male and female
D) Y Chromosome in male
Correct Answer: C
Solution :
X Chromosome in both male and female
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