4. Genetic Mapping and Linkage
Crossing Over and Recombinants
Problem 18
Textbook Question
Textbook QuestionIn Drosophila, two mutations, Stubble (Sb) and curled (cu), are linked on chromosome III. Stubble is a dominant gene that is lethal in a homozygous state, and curled is a recessive gene. If a female of the genotype is to be mated to detect recombinants among her offspring, what male genotype would you choose as a mate?
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