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Select the correct statement from the ones given below with respect to dihybrid cross.

1. Tightly linked genes on the same chromosome show higher recombinations
2. Genes far apart on the same chromosome show very few recombinations
3. Genes loosely linked on the same chromosome show similar recombinations as the tightly linked ones
4. Tightly linked genes on the same chromosome show very few recombinations

Correct answer: Tightly linked genes on the same chromosome show very few recombinations

Solution

Tightly linked genes lie very close together on the same chromosome, so crossing over between them is rare. Therefore, they produce very few recombinant offspring compared with genes that are farther apart.

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