Analyze a cross and identify non-Mendelian pattern of inheritance in non-allelic genes (normal interaction vs epistasis) Hair color is determined in Labrador retrievers by alleles at the B and E loci. dominant allele B encodes black pigment, whereas a recessive allele b encodes brown pigment. Alleles at a second locus affect the deposition of the pigment in the shaft of the hair; dominant allele E allows dark pigment (black or brown) to be deposited, whereas recessive allele e prevents the deposition of dark pigment, causing the hair to be yellow. What type of gene interaction does this represent?

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
a)recessive epistasis b)duplicate recessive epistasis c)normal non-allelic gene interaction d)normal allelic gene interaction
**Analyzing Non-Mendelian Patterns of Inheritance: Epistasis vs. Normal Interaction**

**Hair Color Inheritance in Labrador Retrievers**

In Labrador retrievers, hair color is influenced by alleles at two loci, B and E. 

- The **B locus** involves alleles that determine the pigment color:
  - Dominant allele **B** encodes black pigment.
  - Recessive allele **b** encodes brown pigment.

- The **E locus** involves alleles that affect pigment deposition:
  - Dominant allele **E** allows the deposition of dark pigment (black or brown).
  - Recessive allele **e** prevents the deposition of dark pigment, resulting in yellow hair.

This interaction between the B and E loci represents a type of gene interaction known as **epistasis**, where one gene (E locus) masks or modifies the expression of another gene (B locus).
Transcribed Image Text:**Analyzing Non-Mendelian Patterns of Inheritance: Epistasis vs. Normal Interaction** **Hair Color Inheritance in Labrador Retrievers** In Labrador retrievers, hair color is influenced by alleles at two loci, B and E. - The **B locus** involves alleles that determine the pigment color: - Dominant allele **B** encodes black pigment. - Recessive allele **b** encodes brown pigment. - The **E locus** involves alleles that affect pigment deposition: - Dominant allele **E** allows the deposition of dark pigment (black or brown). - Recessive allele **e** prevents the deposition of dark pigment, resulting in yellow hair. This interaction between the B and E loci represents a type of gene interaction known as **epistasis**, where one gene (E locus) masks or modifies the expression of another gene (B locus).
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

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