69. Congenital deafness in humans is due to the homozygous condition of either of the recessive alleles or or both. d e, Both dominant and are necessary for normal hearing. Gene affects the middle ear, while gene affects the D E D/d E/e inner ear. It does not matter how good the normal inner ear (as indicated by is; if there is something wrong in the E__) middle ear, the individual is unable to hear. The same applies for the other gene. Give the phenotypic results of the following crosses: 70. fruit color in summer squash is influenced by a dominant allele whereas colored fruit must be the W, ww. presence of a dominant gene results in yellow fruit, and homozygous results in green fruit. Give the ww, G gg F2 phenotypic ratios resulting from a cross of a true-breeding plant with white fruit (genotype with a plant with WW GG) green fruit.
69. Congenital deafness in humans is due to the homozygous condition of either of the recessive alleles d or e, or both. Both dominant D and E are necessary for normal hearing. Gene D/d affects the middle ear, while gene E/e affects the inner ear. It does not matter how good the normal inner ear (as indicated by E__) is; if there is something wrong in the middle ear, the individual is unable to hear. The same applies for the other gene. Give the phenotypic results of the following crosses: 70. fruit color in summer squash is influenced by a dominant allele W, whereas colored fruit must be ww. the presence of ww, a dominant gene G results in yellow fruit, and homozygous gg results in green fruit. Give the F2 phenotypic ratios resulting from a cross of a true-breeding plant with white fruit (genotype WW GG) with a plant with green fruit.
Chapter_13_Observing_Patterns_in_Inherited_Traits.docx