Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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**Genetics Problem:**

For the following questions, provide your answer to each part in the space provided.

**L** is dominant over **l**. **L** = large, **l** = small.
**R** is incompletely dominant over **r**. **RR** = red, **Rr** = pink, **rr** = white.

**Parents:** LLRr × LlRr

- **Phenotype of Parent LLRr:** Large Pink
- **Phenotype of Parent LlRr:** Large Pink

**Punnett Square:**

|             | LR         | Lr         | lR         | lr         |
|-------------|------------|------------|------------|------------|
| **LR**  | LLRR (Large Red) | LLRr (Large Pink) | LlRR (Large Red) | LlRr (Large Pink) |
| **Lr**  | LLRr (Large Pink) | LLrr (Large White)| LlRr (Large Pink)| Llrr (Large White)|

**Step 2**

b) The offspring of the parents' cross are:

Phenotype ratio: Large Red : Large Pink : Large White = 2 : 4 : 2
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Transcribed Image Text:**Genetics Problem:** For the following questions, provide your answer to each part in the space provided. **L** is dominant over **l**. **L** = large, **l** = small. **R** is incompletely dominant over **r**. **RR** = red, **Rr** = pink, **rr** = white. **Parents:** LLRr × LlRr - **Phenotype of Parent LLRr:** Large Pink - **Phenotype of Parent LlRr:** Large Pink **Punnett Square:** | | LR | Lr | lR | lr | |-------------|------------|------------|------------|------------| | **LR** | LLRR (Large Red) | LLRr (Large Pink) | LlRR (Large Red) | LlRr (Large Pink) | | **Lr** | LLRr (Large Pink) | LLrr (Large White)| LlRr (Large Pink)| Llrr (Large White)| **Step 2** b) The offspring of the parents' cross are: Phenotype ratio: Large Red : Large Pink : Large White = 2 : 4 : 2
**Genotypes of the Offspring:**

This section would typically list the possible genetic combinations resulting from a genetic cross. It includes all the alleles each parent can pass on and outlines the potential genetic makeup of their offspring.

**Genotypic Ratio of the Offspring:**

Here, you would find the proportion of different genotypes among the offspring. This is often expressed in the format of a ratio and provides insight into how frequently each genotype appears.

**Phenotypes of the Offspring:**

This part describes the physical or observable traits of the offspring that result from the genotypes listed above. Phenotypes are determined by the interaction of genotypes with the environment.

**Phenotypic Ratio of the Offspring:**

In this section, the various observable traits are quantified in a ratio, similar to the genotypic ratio. This ratio helps in understanding the likelihood of each phenotype appearing in a population.

No graphs or diagrams are included in the image.
expand button
Transcribed Image Text:**Genotypes of the Offspring:** This section would typically list the possible genetic combinations resulting from a genetic cross. It includes all the alleles each parent can pass on and outlines the potential genetic makeup of their offspring. **Genotypic Ratio of the Offspring:** Here, you would find the proportion of different genotypes among the offspring. This is often expressed in the format of a ratio and provides insight into how frequently each genotype appears. **Phenotypes of the Offspring:** This part describes the physical or observable traits of the offspring that result from the genotypes listed above. Phenotypes are determined by the interaction of genotypes with the environment. **Phenotypic Ratio of the Offspring:** In this section, the various observable traits are quantified in a ratio, similar to the genotypic ratio. This ratio helps in understanding the likelihood of each phenotype appearing in a population. No graphs or diagrams are included in the image.
Expert Solution
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Step 1

INTRODUCTION

The phenotypic and genotypic ratio of the cross between LLRr and LlRr is given below.

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