Principles of Biology
Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 16.6, Problem 1CC
Summary Introduction

To determine:

The fly or flies in which crossing over occurred to produce the recombinant offspring of the F2 generation.

Introduction:

Crossing over is defined as the exchange of genetic material of non-sister chromatid of the homologous chromosomes. This process occurs at the time of meiosis and will result in an increase in genetic diversity.

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In fruit flies, L= long wings and l = short wings. When a long-winged fly is crossed with a short winged fly, the offspring exhibit a 1:1 ratio.  What is the genotype of the parental flies?
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Assuming that the genes are unlinked, what will be the phenotypes of the offspring from the cross above?
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