2.9) What is the phenotypic distribution for barredeye, wild-type, and intermediate-eye in the F2 generation? Remember to also include information about the sex of the individuals. Identify the homozygous, heterozygous, and hemizygous indivduals. Which phenotypes are observed in the F2 that were not in the parental? 3) Dihybrid cross: The dark-bodied and rudimentary winged genes are on two different autosomal chromosomes. We will use this cross to determine the ratios of phenotypes in the F2 generation when there are two genes involved. 3.1) Use the following symbols to write out the cross: Male: 8 Female: ? Dark body color: DB Wild-type body color: wt Rudimentary wings: Rw Wild-type wings: wtRiw 3.2) What would the cross look like if we mated a Dark-Bodied/Rudimentary winged (double mutant) male with a female that is wild type for both traits? Place the sex of the individual (symbol) on the first set of lines and their respective genotypes in the second set. Sex: Genotypes x 3.3) 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:3.3) 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: 3.4) 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 and male gametes above. 3.5) What phenotype should the F1 offspring have? 3.6) What would the F1 cross look like if we mated a male F1 and a female F1? Place the sex of the individual on the first set of lines and their respective genotypes in the second set. Sex: Genotypes x 3.7) What are the gametes produced by either sex in the F1 generation? Place the symbol for sex on2.4) 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 and male gametes above. 2.5) What is the phenotypic distribution for barredeye, wild-type, and intermediate-eye? Remember to also include information about the sex of the individuals. Identify the homozygous, heterozygous, and hemizygous indivduals. Why aren't there any wild-type females? 2.6) What would the F1 cross look like if we mated a male F1 and a female F1? Place the sex (use the symbol) of the individual on the first set of lines and their respective genotypes in the second set (the genotypes should also refect the sex). Sex: Genotypes x 2.7) 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 gamet.

1. 2.9) What is the phenotypic distribution for barredeye, wild-type, and intermediate-eye in the F2
generation? Remember to also include information about the sex of the individuals. Identify the
homozygous, heterozygous, and hemizygous indivduals. Which phenotypes are observed in the
F2 that were not in the parental? 3) Dihybrid cross: The dark-bodied and rudimentary winged
genes are on two different autosomal chromosomes. We will use this cross to determine the ratios
of phenotypes in the F2 generation when there are two genes involved. 3.1) Use the following
symbols to write out the cross: Male: 8 Female: ? Dark body color: DB Wild-type body color: wt
Rudimentary wings: Rw Wild-type wings: wtRiw 3.2) What would the cross look like if we mated a
Dark-Bodied/Rudimentary winged (double mutant) male with a female that is wild type for both
traits? Place the sex of the individual (symbol) on the first set of lines and their respective
genotypes in the second set. Sex: Genotypes x 3.3) 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:3.3) 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: 3.4) 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 and male gametes above. 3.5) What phenotype
should the F1 offspring have? 3.6) What would the F1 cross look like if we mated a male F1 and a
female F1? Place the sex of the individual on the first set of lines and their respective genotypes in
the second set. Sex: Genotypes x 3.7) What are the gametes produced by either sex in the F1
generation? Place the symbol for sex on2.4) 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 and male gametes above. 2.5) What is the
phenotypic distribution for barredeye, wild-type, and intermediate-eye? Remember to also include
information about the sex of the individuals. Identify the homozygous, heterozygous, and
hemizygous indivduals. Why aren't there any wild-type females? 2.6) What would the F1 cross
look like if we mated a male F1 and a female F1? Place the sex (use the symbol) of the individual
on the first set of lines and their respective genotypes in the second set (the genotypes should
also refect the sex). Sex: Genotypes x 2.7) 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.2) Monohybrid cross 2: Eye-shape gene on the sexdetermining
chromosome. We have a wild type eye shape and a mutant eyeshaped flies that we will cross to
determine the ratio of phenotypes in the F1 and F2 generation. Recall that male flies are XY while
females are XX. Because of the dosage of the X chromosome, we have a system where we will
have homozygous, heterozygous, and hemizygous individuals. 2.1) Use the following symbols to
write out the cross: Bar eye: Br Wild-type eye: Br+ Male: , Use XnY; where " n " is either Br or Br+
Female: 0, Use XnXn; where " n " is either Br or Br+ 2.2) What would the cross look like if we
mated a male with wild-type eyes with a bar-eyed female? 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. Sex: Genotypes x 2.3) What are the gametes produced by

2. 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: 2.4) Using the gametes that you produced from the previous question, fill in the Punnet
square and show the resulting offspring from the cross. Place