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tangare [24]
3 years ago
6

Alleles A and a reside at a locus on the same chromosome as a locus with alleles B and b. Aa Bb is crossed with aa bb and the fo

llowing progeny are produced: Aa Bb 5 Aa bb 45 aa Bb 45 aa bb 5 What conclusion can be drawn about the arrangement of the genes on the chromosome in the Aa Bb parent
Biology
1 answer:
abruzzese [7]3 years ago
8 0

Answer:

The two genes are linked together

Explanation:

<em>The conclusion that can be drawn about the arrangement of the genes on the chromosome in the Aa Bb parent is that the two genes are linked together. That is, they do not assort independently.</em>

When two genes are linked together, the number of recombinant offspring would be more than the number of offspring with parental traits. The frequency of recombination would also not exceed 50%.

<em>Recombination frequency = number of recombinant offspring/total number of offspring x 100%</em>

Number of recombinant offspring = 45 + 45 = 90

Total number of offspring = 45 + 45 + 5 + 5 = 100

Recombination frequency = 90/100 x 100% = 10%

Hence, the two genes Aa and Bb are said to be linked together.

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