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Genetics Linkage And Crossing Over - Questions and Answers

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16. The tendency of two different genes to remain apart if they come from two different parents is
A. Coupling
B. Repulsion
C. Linkage
D. Crossing over
Explanation:
17. Recombination of linked genes is accomplished by
A. Linkage
B. Epistasis
C. Mutation
D. Cross over
Explanation:
18. The genotype of colourless shrunken seeds in maize is
A. CcSs
B. ccss
C. Ccss
D. ccSs
Explanation:
19. Crossing Over occurs when the homologous chromosomes contain
A. One chromatid
B. Two chromatid
C. Four chromatid
D. Eight chromatid
Explanation:
20. The ratio obtained by Bateson and Punnet when they test crossed second time between blue long and red round in sweet pea
A. 7:1:1:7
B. 1:1:1:1
C. 1:7:7:1
D. 9:3:3:1
Explanation:
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