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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
Give technical terms for Repeated units of DNA molecule
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:
Haemophilia is due to recessive gene on __________
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?
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Male act as a carrier for colourblindness.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Females are more affected by sex-linked genetic disorders.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
A colourblind male cannot distinguish any colour.
Both male and female have normal vision though their fathers were colour blind mothers did not have any gene for colour blindness. The probability of their daughter becoming colour blind is ______.
Given diagram is a simplified representation of human sex chromosome. The gene A and B could be of ______.
A plant with red flowers was crossed with another plant with yellow flowers. If F1 showed all flowers orange in colour, explain the inheritance.
