5.1) Use the following symbols to write out the cross: Male: D. Use XnY; where " n " is either nw or nw+ Female: :, Use XnXn; where " n " is either nw or nw+ On another chromosome: Apterous: wI Wild-type Apterous: wl A genotype would include information about the sex and gene associated with the x-chromosome and a secondary gene that determines wings. Example: XnY/wl+wl+ 5.2) What would the cross look like if we mated a notched/wingless male with a wild-type female for the same two traits? Place the sex (symbol) of the individual on the first set of lines and their respective genotypes using the suggested notations from the previous question in the second set (the genotypes should also refect the sex). Sex: Genotypes 5.3) What are the gametes produced by either sex in the parental generation? Place the symbol for sex on the first set of lines and write down the gametes produced by that sex in the following set of lines, respectively. Sex: Gametes produced: 5.4) Using the gametes that you produced from the previous question, fill in the Punnet square and show the resulting offspring from the cross. Place female gametes to the left of the Punnet square and5.7) What are the gametes produced by either sex in the F1 generation? Place the genotypes (these genotypes should display the sex and the trait we are studying) on the first set of lines and write down the gametes produced by that sex in the following set of lines, respectively. Sex: Gametes produced: 5.8) Using the gametes that you produced from the previous question, fill in the Punnet square and show the resulting offspring from the cross. Place female gametes to the left of the Punnet square and male gametes above. 5.9) How many different phenotypes would you expect to observe in the F2 generation? List them. What is the proportion of phenotypes of the F2 generation? Associate the proportion to the appropriate phenotype. Hint" do not forget that there are epistatic interactions between these genes!.

1. 5.1) Use the following symbols to write out the cross: Male: D. Use XnY; where " n " is either nw or
nw+ Female: :, Use XnXn; where " n " is either nw or nw+ On another chromosome: Apterous: wI
Wild-type Apterous: wl A genotype would include information about the sex and gene associated
with the x-chromosome and a secondary gene that determines wings. Example: XnY/wl+wl+ 5.2)
What would the cross look like if we mated a notched/wingless male with a wild-type female for the
same two traits? Place the sex (symbol) of the individual on the first set of lines and their
respective genotypes using the suggested notations from the previous question in the second set
(the genotypes should also refect the sex). Sex: Genotypes 5.3) What are the gametes produced
by either sex in the parental generation? Place the symbol for sex on the first set of lines and write
down the gametes produced by that sex in the following set of lines, respectively. Sex: Gametes
produced: 5.4) Using the gametes that you produced from the previous question, fill in the Punnet
square and show the resulting offspring from the cross. Place female gametes to the left of the
Punnet square and5.7) What are the gametes produced by either sex in the F1 generation? Place
the genotypes (these genotypes should display the sex and the trait we are studying) on the first
set of lines and write down the gametes produced by that sex in the following set of lines,
respectively. Sex: Gametes produced: 5.8) Using the gametes that you produced from the
previous question, fill in the Punnet square and show the resulting offspring from the cross. Place
female gametes to the left of the Punnet square and male gametes above. 5.9) How many
different phenotypes would you expect to observe in the F2 generation? List them. What is the
proportion of phenotypes of the F2 generation? Associate the proportion to the appropriate
phenotype. Hint" do not forget that there are epistatic interactions between these genes!