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In a complimentary gene interaction calculate the number of phenotype and genotype produced in a cross AaBb×aaBB

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Important Questions on Principles of Inheritance and Variation

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How many types of gametes will be produced by a Question Image Drosophila having the following arrangement of two genes( y+and w+) on X-chromosome?

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If interference is complete or cent percent then the frequency of observed double crossover will be
HARD
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In the given pedigree, indicate whether the shaded symbols indicate dominant or recessive allele.

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In which of the following disorder a single protein that is a part of the cascade of proteins involved in blood clotting is affected?
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Mark the correct statement (w.r.t. sickle cell anaemia)
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The defect sickle-cell anaemia is caused by the -------of glutamic acid by valine at the 6th  position of the --------globin chain of the haemoglobin molecule.
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A holandric gene is known for hypertrichosis (long hairs on ears). When a man with hairy ears marries a normal woman, what percentage of their daughters would be expected to have hairy ears?
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A normal woman, whose father had colour blindness, married a normal man. What is the chance of occurrence of colour blindness in the progeny?