### Activity: Hybrid Crosses, Probability & Pedigrees#### I. Genetic Crosses in *Drosophila melanogaster*In the fruit fly *Drosophila melanogaster*, tan body color (B) is dominant to black (b), and dark red eyes (E) is dominant to bright orange (e). A black fly, heterozygous for eye color (Fly #1) is crossed to an orange-eyed fly, heterozygous for body color (Fly #2). **Objectives:**- Determine the genotypes, gametes, ratios of gametes, and complete the Punnett square to find offspring proportions.**Questions:**1. **Genotypes of the parents?** - Fly #1: __________ - Fly #2: __________2. **Gametes from each parent?** - Fly #1: __________ - Fly #2: __________3. **Ratios of gametes from each parent?** - Fly #1: __________ - Fly #2: __________4. **Punnett Square:** - Complete to indicate gamete genotypes from each parent and all offspring genotypes.5. **Proportions of offspring:** - Tan & dark red? ________ - Tan & orange? ________ - Black & dark red? ________ - Black & orange? ________#### II. Probability in Genetic CrossingWhat is the probability that this pair of parents will produce the indicated offspring?- Genotypes: Aa Bb DD x aa Bb Dd → Aa Bb Dd**Probability Calculation:**- Punnett squares for each trait will help determine: - \( P(Aa) \) - \( P(Bb) \) - \( P(Dd) \)**Final Probability:**\[ P(\text{Aa Bb Dd}) = P(\text{Aa}) \times P(\text{Bb}) \times P(\text{Dd}) = \_\_\_\_ \]#### III. Pedigree Analysis**Instructions:**For each of the three pedigrees, determine the likely mode of inheritance and the probability that individual ◊ will express the trait.- **A. Pedigree I** - Mode of inheritance: __________ - \( P(\lor \text{expresses trait}) = \_\_\_\_ \

Name: ### Activity: Hybrid Crosses, Probability & Pedigrees#### I. Genetic
Uploaded: 2024-03-20T06:43:04.000Z
Channel: Bartleby
Description: ### Activity: Hybrid Crosses, Probability & Pedigrees#### I. Genetic Crosses in *Drosophila melanogaster*In the fruit fly *Drosophila melanogaster*, tan body color (B) is dominant to black (b), and dark red eyes (E) is dominant to bright orange (e).