Question: 1a. The presence of the eye color phenotype eosin is an X- melanogaster (fruit flies), represente…
Show transcribed image text
1a. The presence of the eye color phenotype eosin is an X- melanogaster (fruit flies), represented by Xe, while a normal red eyed allele is repre s pair a female with the eosin eye phenotype with a male with a red eye phenotype as the parental generation, and detail the genotypes and phenotypes of the e cross an Fi generation male with an Fi generation fem l the possibie geo phenotype outcomes of F2, as well as the ratios of said outcomes. linked recessive trait in Drosophila ent ed by X'. We t up that cross Then ale and detai lb. If nondisjunction occurs in 5% of female flies genotype: X X Y), please describe the progeny that occur when an eosin eyed female is cross a red eyed male and nondisjunction has occurred (only the nondisjunction portion of the cross). with the eosin eye phenotype (that possess the Eosin eyed female (XeX Y) is crossed with a red eyed male (X'Y) where nondisjunction has occurred 2. In the nematode worm (Caenorhabditis elegans) there are 2 sexes: males and hermaphrodites. A mutation at the CEM allele (Ce) will cause premature sensory neuron death in males, but this will no occur in hermaphrodites. This mutation is a recessive mutation, requiring both alleles to possess th mutation for premature neuronal death to occur, If we cross a hermaphrodite (Ce'Ce) with a male (Ce'Ce') what genotypes and phenotypes will occur? Please be sure to include the ratios for each
