Principles of Inheritance and Variation questions
1199 published questions with worked solutions.
- A marriage between normal visioned man and colourblind woman will produce, which of the following types of offsprings?
- Genes of which of the following disorder are present exclusively on the X-chromosome in humans or concerned with
- A woman has a haemophilic son and three normal children. Her genotype and that of her husband with respect to this gene would be
- If a man who is colourblind marries a women, who is pure normal for colour vision, the chances of their sons have colour...
- Paternal baldness, moustaches and beard in human males are example of
- A man and a woman, who do not show any apparent sign of a certain inherited disease, have seven children (two daughters and five...
- Sickle cell anaemia is
- If a colourblind woman marries a normal visioned man, their sons will be
- Three children in a family have blood types O, AB and B respectively. What are the genotypes of their parents?
- Which of the following is an example of sex-linked disease?
- A haemophilic woman marries a normal man, then
- The genes, which remain confined to differential region of Y-chromosome, are
- Human skin colour is controlled by several gene pairs. Assume there are just three gene pairs on different chromosomes, each with...
- The 'Cri-du-chat' syndrome is caused by change in chromosome structure involving
- Which of the following diseases is governed by pleiotropic genes?
- Lack of independent assortment of two genes-A and B in fruit fly-*Drosophila* is due to
- A boy has a normal brother and a colourblind sister. What is true about his parents?
- Which of the following chromosomal formulation is responsible for the expression of meta-male character in *Drosophila*?
- In amniocentesis of a pregnant woman, it is found that the embryo contains both, Barr body and F-body. The syndrome likely to be...
- A normal women whose father was colourblind, is married to a normal man. The sons would be
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