Generally, aneuploidies are caused by the impaired assortment of chromosomes during meiosis. For example, they are caused when the homologous chromosomes of pair 21 do not separate and, therefore, gametes with two chromosomes 21 and gametes without chromosomes 21 are formed. If a gamete with two chromosomes 21 fertilizes a […]

The genes for mahogany eyes and ebony body are approximately 25 map units apart on chromosome 3 in Drosophila. Assume that a mahogany-eyed female was mated to an ebony- bodied male and that the resulting F1 phenotypically wild-type females were mated to mahogany, ebony males. Of 1000 offspring, what would […]

An investigator purified a protein (protein X) from E.Coli. Sheinjected protein X into rabbits to generate antibodies thatrecognize and bind to protein X. Using an electrophoretictechnique, she separated the proteins from a crude cell extract andused the antibody to locate protein X on the gel. TO her surprise,the antibody bound […]

Consider another cross involving the genes for seed color andshape. as before, yellow is dominant to green and smooth isdominant to wrinkled . a plant with smooth , yellow seeds iscrossed to a plant with wrinkled , green seeds. the peas producedare as follows1/4 somooth yellow1/4 smooth green1/4wrinkled yellow1/4 wrinkled […]