I. 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). What are... Genotypes of the parents? Gametes from each parent? Ratios of gametes from each parent? Complete the following Punnett square. Indicate gamete genotypes from each parent and all offspring genotypes. Fly #1 What proportion of offspring are... Tan & dark red? Tan & orange? Black & dark red? Black & orange? Probability (P) of Aa Bb Dd = P (Aa) B. | || C. II. What is the probability that this pair of parents will produce the indicated offspring? Aa Bb DD x aa Bb Dd Aa Bb Dd. Punnett squares for each trait can help with this! III IV Mode of inheritance = I BIO 340 ACTIVITY #3: HYBRID CROSSES, PROBABILITY & PEDIGREES Name (Last, First) III. For each of these three pedigrees, determine the likely mode of inheritance and the probability that individual will express the trait. A. || O III IV Mode of inheritance = O I 11 III #1 O Mode of inheritance = #1 IV " ОПОDO #1 Fly #2 오ㅜㅁ +000 x P (Bb) x #2 □-O- #2 ■-O #2 x P (Dd) O P() expresses trait = P() expresses trait = 우ㅜ OD P() expresses trait = 1 2
I. 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). What are... Genotypes of the parents? Gametes from each parent? Ratios of gametes from each parent? Complete the following Punnett square. Indicate gamete genotypes from each parent and all offspring genotypes. Fly #1 What proportion of offspring are... Tan & dark red? Tan & orange? Black & dark red? Black & orange? Probability (P) of Aa Bb Dd = P (Aa) B. | || C. II. What is the probability that this pair of parents will produce the indicated offspring? Aa Bb DD x aa Bb Dd Aa Bb Dd. Punnett squares for each trait can help with this! III IV Mode of inheritance = I BIO 340 ACTIVITY #3: HYBRID CROSSES, PROBABILITY & PEDIGREES Name (Last, First) III. For each of these three pedigrees, determine the likely mode of inheritance and the probability that individual will express the trait. A. || O III IV Mode of inheritance = O I 11 III #1 O Mode of inheritance = #1 IV " ОПОDO #1 Fly #2 오ㅜㅁ +000 x P (Bb) x #2 □-O- #2 ■-O #2 x P (Dd) O P() expresses trait = P() expresses trait = 우ㅜ OD P() expresses trait = 1 2
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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![**BIO 340 Activity #3: Hybrid Crosses, Probability & Pedigrees**
---
**I. 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). What are...**
- **Genotypes of the parents?**
#1 _____________ x #2 _____________
- **Gametes from each parent?**
#1 _____________ #2 _____________
- **Ratios of gametes from each parent?**
#1 _____________ #2 _____________
**Complete the following Punnett square. Indicate gamete genotypes from each parent and all offspring genotypes.**
- **What proportion of offspring are...**
- Tan & dark red? _____________
- Tan & orange? _____________
- Black & dark red? _____________
- Black & orange? _____________
[Diagram: A blank 4x4 Punnett square titled "Fly #1" and "Fly #2".]
---
**II. What is the probability that this pair of parents will produce the indicated offspring?**
\[ Aa \ Bb \ DD \ \times \ aa \ Bb \ Dd \ \rightarrow \ Aa \ Bb \ Dd \]
**Punnett squares for each trait can help with this!**
[Diagram: Three blank 2x2 Punnett squares.]
- **Probability (P) of Aa Bb Dd = P(Aa) _____ × P(Bb) _____ × P(Dd) _____ = _____**
---
**III. For each of these three pedigrees, determine the likely mode of inheritance and the probability that individual ◇ will express the trait.**
**A.**
[Diagram: Pedigree chart showing inheritance pattern across four generations.]
- **Mode of inheritance = ____________________**
- **P(◇) expresses trait = _____**
**B.**
[Diagram: Pedigree chart showing inheritance pattern across four generations.]
- **Mode of inheritance = ____________________**
- **P(◇) expresses trait = _____**
**C.**
[Diagram: Pedigree chart showing inheritance pattern across four generations.]
-](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F096b6bb3-2f11-49d8-9074-81efda173389%2F98d57b43-ad81-4154-819a-93c2ceb485ed%2Fjb7a4pa_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**BIO 340 Activity #3: Hybrid Crosses, Probability & Pedigrees**
---
**I. 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). What are...**
- **Genotypes of the parents?**
#1 _____________ x #2 _____________
- **Gametes from each parent?**
#1 _____________ #2 _____________
- **Ratios of gametes from each parent?**
#1 _____________ #2 _____________
**Complete the following Punnett square. Indicate gamete genotypes from each parent and all offspring genotypes.**
- **What proportion of offspring are...**
- Tan & dark red? _____________
- Tan & orange? _____________
- Black & dark red? _____________
- Black & orange? _____________
[Diagram: A blank 4x4 Punnett square titled "Fly #1" and "Fly #2".]
---
**II. What is the probability that this pair of parents will produce the indicated offspring?**
\[ Aa \ Bb \ DD \ \times \ aa \ Bb \ Dd \ \rightarrow \ Aa \ Bb \ Dd \]
**Punnett squares for each trait can help with this!**
[Diagram: Three blank 2x2 Punnett squares.]
- **Probability (P) of Aa Bb Dd = P(Aa) _____ × P(Bb) _____ × P(Dd) _____ = _____**
---
**III. For each of these three pedigrees, determine the likely mode of inheritance and the probability that individual ◇ will express the trait.**
**A.**
[Diagram: Pedigree chart showing inheritance pattern across four generations.]
- **Mode of inheritance = ____________________**
- **P(◇) expresses trait = _____**
**B.**
[Diagram: Pedigree chart showing inheritance pattern across four generations.]
- **Mode of inheritance = ____________________**
- **P(◇) expresses trait = _____**
**C.**
[Diagram: Pedigree chart showing inheritance pattern across four generations.]
-
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