What is the minimum number of crossing over events needed for each of the following events to occur (assuming that each event takes place via crossing over, instead of other alternative mechanisms).
A Robertsonian translocation [Select]
The creation of a merodiploid bacterial cell (using an Ft cell and an F cell). [Select]
A change in a bacterial chromosome's genotype, via transformation. [Select]
A chromosomal mutation that causes a human brain cell to produce lactase enzyme. [Select]
We need at least 10 more requests to produce the answer.
0 / 10 have requested this problem solution
The more requests, the faster the answer.
What is the minimum number of crossing over events needed for each of the following events to occur
2. A dominant allele H reduces the number of body bristles that Drosophila flies have, giving rise to a “hairless” phenotype. In the homozygous condition, H is lethal. An independently assorting dominant allele S has no effect on bristle number except in the presence of H, in which case a single dose of S suppresses the hairless phenotype, thus restoring the "hairy" phenotype. However, S also is lethal in the homozygous (S/S) condition. What ratio of hairy to hairless flies...