You were given 1000 fruit flies to start a new laboratory colony. Before starting to breed your fruit flies, you decided to determine their genetic make up. You counted approximately 360 fruit flies that have vestigial wings, a recessive trait. If you decide to remove all the fruit flies with vestigial wings and only breed the flies with normal wings, what is the approximate frequency of individuals with vestigial wings in the F1 generation? 0.09 O 0.16 0.25 0.36 O 0.14

In corn plants, a dominant allele (I) inhibits kernel colour, but the recessive allele (i) permits colour when homozygous. At a different locus, the dominant gene P causes purple kernel colour, and the homozygous recessive genotype pp causes red kernels. If plants that are heterozygous at both loci are crossed, what will be the phenotypic ratio of the F1 generation?

States) B *In nature, individual plants of Plectritis congesta bear either winged or wingless fruits. Three individual plants were collected from nature (thus not necessarily pure breeding) before flow- ering and were either crossed or self-pollinated. The results are shown below. Number of progeny plants Wingless 0 30 80 0 31 Cross 1 2 3 4 TU Parental phenotypes Winged #1 (selfed) Winged #/2 (selfed) Wingless #1 (selfed) Winged #1 X Wingless #1 Winged #2 X Wingless #1 Winged #1 X Winged #2 The fruits of two different forms of Plectritis congesta, the sea blush: Wingless fruit and winged fruit. a) Give a concise genetic hypothesis for the inheritance of fruit shape as determined from these crosses (include the number of genes, number of alleles, and dominance relation- ship between alleles).² b) Give the most probable genotypes of: (define your alleles) 2 Winged #1 Winged #2 Wingless #1 1) 2) c) If you self-pollinate the winged #2 plant and planted six seed, what is the probability of…

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