Lobed (L) is sex linked and dominant. Antennaless (al) and eyeless (ey) are unliked recessive autosomal loci. A homozygous wild-type male is crossed to a homozygous lobed (L), antennaless (al), and eyeless (ey) female . The F1 is inbred to produce F2. Among total F2 fles, how frequently would you expect to find lobed, antennaless, eyeless female? Examining the Frequencies of Lobed, Antennaless, and Eyeless Genotypes in an F2 Cross

An F2 Cross Examining the Frequencies for Lobed, Antennaless and Eyeless Genotypes

F2 crosses between a wild-type homozygous male and an homozygous homozygous Lobed (L), Antennaless (al) and Eyeless (ey), the lobed trait can be sex-linked to and dominate, while the other traits, such as the antennaless or eyeless, are linked recessive Autosomal loci. One-fourth of all F2 females will be expected to have lobed, antennaless, and/or eyeless traits. This is because the female parent will have all three traits, while the male parent will only have the lobed trait (Acevedo-Rodr√≠guez and Strong, 2020). According to Friedman and colleagues (2016), F2 will have 75% lobed males as well as 25% lobed, antennaless, or eyeless females. Because the dominant trait is passed to both parents, the recessive trait only will be passed to the mother. The frequency at which females carrying the genotype LLalal eyesy are found in F2 would be 0.25 (Vignaux and Robertson, 2018). The Genetics of Lobed and Antennaless Eyeless Females. Since the early 1900s scientists have been interested in the genetics of the traits expressed by lobed, antennaless and eyeless females (Lalal eyesy). Because the dominant, sex-linked dominant L gene as well as the recessive Autosomal loci Al and ey may result in expression of the same phenotype in a female. Cont…

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