A made-up genetic phenotype in humans results in some people having both brown and blond body hair. It is noticeable only if you look closely and these individuals which have small, medium, and large patches of brown hair and small, medium, large patches of blond body hair spread throughout their body. a.) If this phenotype is only seen in females, males have completely blond or brown body hair, how would you describe the genetic nature of this phenotype?

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,...
icon
Related questions
Topic Video
Question
### Genetic Phenotype in Humans: Brown and Blond Body Hair

A made-up genetic phenotype in humans results in some people having both brown and blond body hair. This phenotype is noticeable only if you look closely at these individuals, who exhibit small, medium, and large patches of brown hair along with small, medium, and large patches of blond body hair spread throughout their bodies.

#### Question for Analysis:
a.) If this phenotype is only seen in females, while males have completely blond or brown body hair, how would you describe the genetic nature of this phenotype?

**Detailed Explanation of the Genetic Phenotype:**
This particular genetic pattern suggests that the presence of both brown and blond body hair, in patches of varying sizes, is a female-specific trait. This could indicate a sex-linked genetic factor, often found on the X chromosome, where males (having only one X chromosome paired with one Y chromosome) do not exhibit the same patchy hair coloration because they lack the necessary genetic combination. The observation of this phenotype only in females implies that it is potentially a recessive trait carried on the X chromosome that manifests when two X chromosomes (one from each parent) carry the necessary alleles, resulting in females exhibiting the phenotype and males expressing a different, non-patchy hair color due to the dominant nature of their single X-linked allele.
Transcribed Image Text:### Genetic Phenotype in Humans: Brown and Blond Body Hair A made-up genetic phenotype in humans results in some people having both brown and blond body hair. This phenotype is noticeable only if you look closely at these individuals, who exhibit small, medium, and large patches of brown hair along with small, medium, and large patches of blond body hair spread throughout their bodies. #### Question for Analysis: a.) If this phenotype is only seen in females, while males have completely blond or brown body hair, how would you describe the genetic nature of this phenotype? **Detailed Explanation of the Genetic Phenotype:** This particular genetic pattern suggests that the presence of both brown and blond body hair, in patches of varying sizes, is a female-specific trait. This could indicate a sex-linked genetic factor, often found on the X chromosome, where males (having only one X chromosome paired with one Y chromosome) do not exhibit the same patchy hair coloration because they lack the necessary genetic combination. The observation of this phenotype only in females implies that it is potentially a recessive trait carried on the X chromosome that manifests when two X chromosomes (one from each parent) carry the necessary alleles, resulting in females exhibiting the phenotype and males expressing a different, non-patchy hair color due to the dominant nature of their single X-linked allele.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Knowledge Booster
Patterns of inheritance
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.
Similar questions
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
Biology 2e
Biology 2e
Biology
ISBN:
9781947172517
Author:
Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:
OpenStax
Anatomy & Physiology
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)
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
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)
Inquiry Into Life (16th Edition)
Biology
ISBN:
9781260231700
Author:
Sylvia S. Mader, Michael Windelspecht
Publisher:
McGraw Hill Education