Please Explain Do not answer if you are not sure..I\'ll report if there is an un

Question

Please Explain

Do not answer if you are not sure..I'll report if there is an unexplained answer/ or completely wrong answer.

Genes A and B are separated by 26 m.u. on the X chromosome of Drosophila. You collect individual Drosophila from nature and isolate five different X chromosomes. You make heterozygous females in every pairwise combination of these chromosomes, and for each combination you measure the recombination frequency between A and B. The results are shown in the table below. If chromosome 1B is defined as the "normal" structure, which of the chromosomes contain an inversion relative to 1B?

Explanation / Answer

An inversion relative chromosome is the one which is having a segment of a chromosomes that are reversed end to end. An inversion occurs when chromosome rearrangement or breakage within itself.

Thus, the correct options are 1A and 1D.

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