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Standard X
Biology
Inheritance
In a populati...
Question
In a population of 10000 fruitfly 6280 have white eye miniature wing and 9870 have yellow body and white eye.Map the distance between gene of white eye(W),miniature wing(w)and yellow body (Y)on a lineargenetic map
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Q.
In Drosophila melanogaster; the genes white and yellow shows ____a____ recombination and genes white and miniature wing shows _____b_____ linkage.
Q.
In Drosophila, the yellow gene (y) and white gene (w) showed 1.3% recombination while white (w) and miniature wing gene (m) showed 37.2% recombinations. This indicates that:
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In Drosophila, the yellow gene (y) and white gene (w) showed 1.3% recombination while white (w) and miniature wing gene (m) showed 37.2% recombinations. This indicates that:
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In fruit fly genes for red, eosin and white eye colour are allelic and sex linked. Gene for yellow body is linked with white eye with a cross over value of 1.5%. The probable crossover value between eosin and yellow body allele would be then
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Following are the observations of Morgan’s dihybrid cross. Fill in the blanks with the most appropriate findings.
1. The genes responsible for white eye color and that for yellow body were very ____i____ linked. _____ii____ of the
F
2
generation had parental phenotype while __iii_______ of
F
2
offspring had the recombinant phenotype.
2. The genes responsible for white eye color and miniature wings were ___iv_____ linked. Percentage of
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progenies showing parental and recombinant phenotypes were ____v_____ and ____vi_____ respectively.
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