Homework Help is Here – Start Your Trial Now!
Science
Biology
Background to Problems 1 and 2. When a fly (Drosophila) strain with round, brown eyes was crossed to a different strain with kidney-shaped, red eyes, all F1 flies had eyes that were round and red. When these F1 flies were test crossed (i.e., mated to a suitable test strain), there were four distinct eye phenotypes observed in the F2, all at approximately the same frequency (i.e., ~ 25% each), namely: 1) round & red; 2) round & brown; 3) kidney-shaped & red; and 4) kidney-shaped & brown. 1) How many different genes (each with two alleles) control the eye phenotype in this example? 2) What was the phenotype of the test strain flies?

Background to Problems 1 and 2. When a fly (Drosophila) strain with round, brown eyes was crossed to a different strain with kidney-shaped, red eyes, all F1 flies had eyes that were round and red. When these F1 flies were test crossed (i.e., mated to a suitable test strain), there were four distinct eye phenotypes observed in the F2, all at approximately the same frequency (i.e., ~ 25% each), namely: 1) round & red; 2) round & brown; 3) kidney-shaped & red; and 4) kidney-shaped & brown. 1) How many different genes (each with two alleles) control the eye phenotype in this example? 2) What was the phenotype of the test strain flies?

Human Anatomy & Physiology (11th Edition)
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,...
See similar textbooks
icon
Related questions
Question
be holding online office hours Tuesday morning. Background to Problems 1 and 2. When a fly (Drosophila) strain with round, brown eyes was crossed to a different strain with kidney-shaped, red eyes, all F1 flies had eyes that were round and red. When these Fi flies were test crossed (i.e., mated to a suitable test strain), there were four distinct eye phenotypes observed in the F2, all at approximately the same frequency (i.e., ~ 25% each), namely: 1) round & red; 2) round & brown; 3) kidney-shaped & red; and 4) kidney-shaped & brown. 1) How many different genes (each with two alleles) control the eye phenotype in this example? 2) What was the phenotype of the test strain flies?
Transcribed Image Text:be holding online office hours Tuesday morning. Background to Problems 1 and 2. When a fly (Drosophila) strain with round, brown eyes was crossed to a different strain with kidney-shaped, red eyes, all F1 flies had eyes that were round and red. When these Fi flies were test crossed (i.e., mated to a suitable test strain), there were four distinct eye phenotypes observed in the F2, all at approximately the same frequency (i.e., ~ 25% each), namely: 1) round & red; 2) round & brown; 3) kidney-shaped & red; and 4) kidney-shaped & brown. 1) How many different genes (each with two alleles) control the eye phenotype in this example? 2) What was the phenotype of the test strain flies?
Expert Solution
steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Analytical Methods
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
  • SEE MORE 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
SEE MORE TEXTBOOKS