2) Consider the flower color in a hypothetical plant. There is one gene (Bb) for flower color and two alleles involved (B and b). Based on this pattern, what type of inheritance are we talking about? HINT: start by writing the genotypes for each. Cross 1: gives F1: Cross 2: a) What are the parents' genotypes? b) What are the offspring's genotypes? gives F2: Blue-flowered plant x white-flowered plant all pale-blue-flowered Pale-blue F1 x pale-blue F1 27 blue 49 pale-blue 24 white
2) Consider the flower color in a hypothetical plant. There is one gene (Bb) for flower color and two alleles involved (B and b). Based on this pattern, what type of inheritance are we talking about? HINT: start by writing the genotypes for each. Cross 1: gives F1: Cross 2: a) What are the parents' genotypes? b) What are the offspring's genotypes? gives F2: Blue-flowered plant x white-flowered plant all pale-blue-flowered Pale-blue F1 x pale-blue F1 27 blue 49 pale-blue 24 white
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,...
Related questions
Topic Video
Question
![### Inheritance Patterns of Flower Color in Plants
#### Problem Statement
Consider the flower color in a hypothetical plant. There is one gene (Bb) for flower color and two alleles involved (B and b). Based on the pattern provided, what type of inheritance are we talking about? **Hint:** Start by writing the genotypes for each case.
#### Cross 1:
- **Parents**: Blue-flowered plant (BB) x White-flowered plant (bb)
- **F1 Generation Outcome**: All pale-blue-flowered (Bb)
#### Cross 2:
- **Parents**: Pale-blue F1 (Bb) x Pale-blue F1 (Bb)
- **F2 Generation Outcome**:
- 27 blue (BB)
- 49 pale-blue (Bb)
- 24 white (bb)
#### Questions:
a) What are the parents’ genotypes?
b) What are the offspring’s genotypes?
---
### Detailed Explanation:
#### Genotypes of the Parents:
**Cross 1:**
- Blue-flowered plant: **BB** (homozygous dominant)
- White-flowered plant: **bb** (homozygous recessive)
These genotypes result in 100% of the F1 generation having the genotype **Bb** (heterozygous), which expresses a pale-blue phenotype due to incomplete dominance.
**Cross 2:**
- Both parents are pale-blue F1 plants, each with the genotype **Bb** (heterozygous).
---
### Expected Genotypic and Phenotypic Ratios:
#### Genotypic Ratio for Cross 2 (F2 Generation):
- **BB** (homozygous dominant): 1/4 (or approximately 25%)
- **Bb** (heterozygous): 1/2 (or approximately 50%)
- **bb** (homozygous recessive): 1/4 (or approximately 25%)
#### Phenotypic Ratio for Cross 2 (F2 Generation):
Given the phenotypic expression due to incomplete dominance:
- **Blue (BB)**: 27 out of 100 (27%)
- **Pale-blue (Bb)**: 49 out of 100 (49%)
- **White (bb)**: 24 out of 100 (24%)
This observation matches the data collected in Cross 2, confirming the ratios for incomplete dominance.
---
This pattern suggests **incomplete](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5a42e955-ad32-475d-915b-80eb314f2644%2F2b4cf447-3a3d-4b12-ae39-557866b438bf%2F8e557pb_processed.jpeg&w=3840&q=75)
Transcribed Image Text:### Inheritance Patterns of Flower Color in Plants
#### Problem Statement
Consider the flower color in a hypothetical plant. There is one gene (Bb) for flower color and two alleles involved (B and b). Based on the pattern provided, what type of inheritance are we talking about? **Hint:** Start by writing the genotypes for each case.
#### Cross 1:
- **Parents**: Blue-flowered plant (BB) x White-flowered plant (bb)
- **F1 Generation Outcome**: All pale-blue-flowered (Bb)
#### Cross 2:
- **Parents**: Pale-blue F1 (Bb) x Pale-blue F1 (Bb)
- **F2 Generation Outcome**:
- 27 blue (BB)
- 49 pale-blue (Bb)
- 24 white (bb)
#### Questions:
a) What are the parents’ genotypes?
b) What are the offspring’s genotypes?
---
### Detailed Explanation:
#### Genotypes of the Parents:
**Cross 1:**
- Blue-flowered plant: **BB** (homozygous dominant)
- White-flowered plant: **bb** (homozygous recessive)
These genotypes result in 100% of the F1 generation having the genotype **Bb** (heterozygous), which expresses a pale-blue phenotype due to incomplete dominance.
**Cross 2:**
- Both parents are pale-blue F1 plants, each with the genotype **Bb** (heterozygous).
---
### Expected Genotypic and Phenotypic Ratios:
#### Genotypic Ratio for Cross 2 (F2 Generation):
- **BB** (homozygous dominant): 1/4 (or approximately 25%)
- **Bb** (heterozygous): 1/2 (or approximately 50%)
- **bb** (homozygous recessive): 1/4 (or approximately 25%)
#### Phenotypic Ratio for Cross 2 (F2 Generation):
Given the phenotypic expression due to incomplete dominance:
- **Blue (BB)**: 27 out of 100 (27%)
- **Pale-blue (Bb)**: 49 out of 100 (49%)
- **White (bb)**: 24 out of 100 (24%)
This observation matches the data collected in Cross 2, confirming the ratios for incomplete dominance.
---
This pattern suggests **incomplete
Expert Solution
![](/static/compass_v2/shared-icons/check-mark.png)
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Recommended textbooks for you
![Human Anatomy & Physiology (11th Edition)](https://www.bartleby.com/isbn_cover_images/9780134580999/9780134580999_smallCoverImage.gif)
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
![Biology 2e](https://www.bartleby.com/isbn_cover_images/9781947172517/9781947172517_coverImage_Textbooks.gif)
Biology 2e
Biology
ISBN:
9781947172517
Author:
Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:
OpenStax
![Anatomy & Physiology](https://www.bartleby.com/isbn_cover_images/9781259398629/9781259398629_smallCoverImage.gif)
Anatomy & Physiology
Biology
ISBN:
9781259398629
Author:
McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:
Mcgraw Hill Education,
![Human Anatomy & Physiology (11th Edition)](https://www.bartleby.com/isbn_cover_images/9780134580999/9780134580999_smallCoverImage.gif)
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
![Biology 2e](https://www.bartleby.com/isbn_cover_images/9781947172517/9781947172517_coverImage_Textbooks.gif)
Biology 2e
Biology
ISBN:
9781947172517
Author:
Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:
OpenStax
![Anatomy & Physiology](https://www.bartleby.com/isbn_cover_images/9781259398629/9781259398629_smallCoverImage.gif)
Anatomy & Physiology
Biology
ISBN:
9781259398629
Author:
McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:
Mcgraw Hill Education,
![Molecular Biology of the Cell (Sixth Edition)](https://www.bartleby.com/isbn_cover_images/9780815344322/9780815344322_smallCoverImage.gif)
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:
9780815344322
Author:
Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:
W. W. Norton & Company
![Laboratory Manual For Human Anatomy & Physiology](https://www.bartleby.com/isbn_cover_images/9781260159363/9781260159363_smallCoverImage.gif)
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:
9781260159363
Author:
Martin, Terry R., Prentice-craver, Cynthia
Publisher:
McGraw-Hill Publishing Co.
![Inquiry Into Life (16th Edition)](https://www.bartleby.com/isbn_cover_images/9781260231700/9781260231700_smallCoverImage.gif)
Inquiry Into Life (16th Edition)
Biology
ISBN:
9781260231700
Author:
Sylvia S. Mader, Michael Windelspecht
Publisher:
McGraw Hill Education