In Drosophila, females heterozygous for the recessive alleles m, q, and z were c
ID: 74794 • Letter: I
Question
In Drosophila, females heterozygous for the recessive alleles m, q, and z were crossed to males homozygous recessive for these three mutant genes. The phenotypes of the resulting progeny were: The gene order is known to be mqz. How many map units separate genes q and z? The gene order is known to be mqz. How many map units separate genes m and q? Given the wobble hypothesis, if CCU codes for proline, UUC codes for phenylalanine, and CGU codes for leucine, then it is most likely that CCA codes for: When n equals ABC, AABBCCC is: How many Barr bodies are present in a 46, XY male?Explanation / Answer
16. e. 30
The distance between q and z = [(gametes produced by single crossover between q and z) + (gametes produced by double crossover) [* 100/ total number of gametes.
= [(142+138) +(11+9)] *100/ 1000
= 30 map units