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प्रश्न
Very Short Answer Question.
What are holandric traits?
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उत्तर
The traits that are controlled by genes present only on the Y chromosome are known as holandric traits.
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संबंधित प्रश्न
Give scientific reasons : Colour blindness is more common in men than in women.
Give technical terms for A sudden heritable change in the gene
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 |
Make a punnett square for finding out the proportion of different genotypes in the progeny of a genetic cross between.
red flower variety of pea (RR) with white flower variety of pea (rr)
A woman has normal vision but her father was colour blind. If she is married to a colour blind person, report on the occurrence of the disease in the progeny.
Choose the correct answer:
Haemophilia is due to recessive gene on __________
Name any one X-linked disease found in humans.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Colour blindness is a Y-linked character.
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 ______.
