How do you get 66.66% and 33.33%?

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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How do you get 66.66% and 33.33%?

 

IV-4 Genotype: Aa

Male Genotype: aa

**Problem (d)**: If IV-4 and IV-5 have kids, describe what their genotypes and phenotypes could be.

**Parental Genotypes:**
- Female: Aa
- Male: aa

**Punnett Square:**

|   | a | a |
|---|---|---|
| A | Aa | Aa |
| a | aa | aa |

This square shows potential genetic combinations for the offspring.

**Genotypic Outcomes:**
1. Aa (50% chance): These offspring are carriers but healthy.
2. aa (50% chance): These offspring are sick.

**Phenotypic Outcomes:**
- There is a 66.66% chance that IV-4 is a carrier:
  - 50% of the offspring will be healthy carriers.
  - 50% will be sick.
- There is a 33.33% chance that IV-4 is not a carrier:
  - 100% of the potential offspring would be normal. 

This analysis helps in understanding the risks and probabilities related to genetic traits passed to children.
Transcribed Image Text:**Problem (d)**: If IV-4 and IV-5 have kids, describe what their genotypes and phenotypes could be. **Parental Genotypes:** - Female: Aa - Male: aa **Punnett Square:** | | a | a | |---|---|---| | A | Aa | Aa | | a | aa | aa | This square shows potential genetic combinations for the offspring. **Genotypic Outcomes:** 1. Aa (50% chance): These offspring are carriers but healthy. 2. aa (50% chance): These offspring are sick. **Phenotypic Outcomes:** - There is a 66.66% chance that IV-4 is a carrier: - 50% of the offspring will be healthy carriers. - 50% will be sick. - There is a 33.33% chance that IV-4 is not a carrier: - 100% of the potential offspring would be normal. This analysis helps in understanding the risks and probabilities related to genetic traits passed to children.
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