Gene A and B are separated by 26 m.u. on the x chromosome of Drosophila. You col
ID: 41877 • Letter: G
Question
Gene 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 teh 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? Select all that apply.Explanation / Answer
The chromosome rearrangement is called inversion. In this process, a segment of chromosome is reversed end to end. When a single chromosome undergoes breakage and rearrangement than it leads to inversion. Inversion is of two types which includes paracentric and pericentric.
Recombinant frequency is the measure of degree of recombinat types formed from a specific set of parents. Recombinant frequency is measured as number of recombinant progeny produced to total number of progeny and the result is multiplied to 100.
In the given case, it is asked for inverted sequence for chromosome 1B thus, the answer is 1C
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