Principles of Inheritance and Variation questions
1199 published questions with worked solutions.
- If A = normal allele, a = albino allele, then the genotypes of the father and mother (of a family in which an albino child was...
- _____ is an example of an X-linked recessive trait.
- If a haemophilic man marries a carrier woman, then which of the following holds true for their progeny?
- The possibility of a female becoming haemophilic is extremely rare because the mother of such a female has to be at least (i) ___...
- The result of a cross between a normal homozygous female and a haemophilic male would be
- A colour-blind man (X^cY) marries a woman who is a carrier for haemophilia (XX^h). Which of the following is true for their...
- A marriage between a colour-blind man and a normal woman produces
- Red-green colour blindness is a sex-linked trait. Which of the given statements is NOT correct regarding colour blindness?
- The disease sickle-cell anaemia is caused by the substitution of (i) ___ by (ii) ___ at the (iii) ___ position of the (iv) ___...
- Which of the following is NOT an example of a recessive autosomal disease?
- Select the disease which is caused by recessive autosomal genes when present in the homozygous condition.
- In this disease, there occurs a failure of the chloride ion transport mechanism in the cell-surface membrane of epithelial cells;...
- Match column I with column II and select the correct option from the given codes. | Column I | Column II | |---|---| | A....
- Which of the following traits is controlled by sex-linked recessive genes?
- Read the given statements. (i) Incomplete (mosaic) inheritance is an example of the pre-Mendelian concept of blending...
- Match column I with column II and select the correct option from the given codes. | Column I | Column II | |---|---| | A....
- Klinefelter's syndrome is characterised by a karyotype of
- All genes located on the same chromosome
- Conditions of a karyotype 2n 1 and 2n 2 are called
- The distance between genes and the percentage of recombination shows
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