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प्रश्न
Give examples of X-linked traits.
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उत्तर
Examples of X-linked traits are haemophilia, red-green colour blindness, myopia (near sightedness), Ichthyosis.
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संबंधित प्रश्न
Match the terms in column I with their explanations in column II.
| Column I (Term) | Column I (Explanation) | ||
| a | genetics | 1 | Chromosomes similar in size and shape |
| b | Autosomes | 2 | The alternative forms of a gene |
| c | Recessive gene | 3 | Study of laws of inheritance of characters |
| d | Allele | 4 | A gene that can express only when in a similar pair |
| e | Homologous chromosomes | 5 | Chromosomes other than the pair of sex chromosomes |
Choose the correct answer:
A carrier haemophilic woman marries a haemophilic man. What are the chances for her progeny to be haemophilic?
A family consists of two parents and their five children and the pedigree chart shown below shows the inheritance of the trait colour blindness in them.

On which chromosome is the gene of this trait located?
A haemophilic man marries a carrier women. Find out the probability of their offsprings being haemophilic.
Give Technical Term:
Name a genetic disease in which a person cannot distinguish red and green colour.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Cancer is a genetic disorder.
What are holandric genes?
A man is haemophilic. It indicates that he ______.
Holandric genes are located ______.
Given diagram is a simplified representation of human sex chromosome. The gene A and B could be of ______.

