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प्रश्न
Give one example A nitrogenous base in DNA
उत्तर
nitrogenous base in DNA – Adenine
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संबंधित प्रश्न
Briefly explain the term ‘Mutation’.
Answer the following briefly:
Explain with the help of a chart what will be the colour of a child's hair if father has got dominant gene for black hair and mother has recessive gene for brown hair?
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.
Name one other trait in humans which follows a similar pattern of inheritance.
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:
A colourblind male cannot distinguish any colour.
What are X-linked genes?
What would be the progeny obtained if a woman carrier for colour blindness marries a normal vision man?
Rakesh is colour blind, married to Sangeeta who is having normal v1s10n (Homozygous). They have a son and a daughter. Determine the type of vision in their children with the help of a suitable chart.
Types of sex- linked genes:
(Haemophilia, Ichthyosis, nephritis, Myopia, Hypertrichosis, Retinitis pigmentosa)
| Column 'A' | Column 'B' | |
| (1) | Completely X- linked genes | ______ |
| (2) | Completely Y- linked | ______ |
| (3) | Incompletely sex-linked genes | ______ |
