Biology
Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
bartleby

Concept explainers

bartleby

Videos

Question
Book Icon
Chapter 18.6, Problem 1CC
Summary Introduction

To determine: The fly in which crossing over occurs to produce the recombinant offsprings in the F2 generation.

Introduction: During reproduction, the next generation inherits the parental traits. However, some new features are also seen in the offsprings. Linkage and crossing over are two phenomena that are responsible for the development of parental and recombinant types.

Blurred answer
Students have asked these similar questions
A homozygous tomato plant with orange fruit and white flowers was crossed with a homozygous tomato plant with red fruit and red flowers. The F1 all had orange fruit and white flowers. The F1 were testcrossed by crossing them to homozygous recessive individuals and the following offspring were obtained: Orange fruit and white flowers- 64 Red fruit and red flowers- 69 Orange fruit and red flowers- 14 Red fruit and white flowers- 13 What is the recombination frequency of these two genes?
Wild-type mice have brown fur and short tails. Loss of function of a particular gene produces white fur, while loss of function of another gene produces long tails, and loss of function at a third locus produces agitated behavior. Each of these loss of function alleles is recessive. If a wild-type mouse is crossed with a triple mutant, and their F1 progeny is test-crossed, the following recombination frequencies are observed among their progeny. Produce a genetic map for these loci. Brown, short tailed, normal: 955 White, short tailed, normal: 16 Brown, short tailed, agitated: 0 White, short tailed, agitated: 36 Brown, long tailed, normal: White, long tailed, normal: Brown, long tailed, agitated: 46 0 14 White, long tailed, agitated: 933
In autotetraploid Chinese primrose (Primula sinensis L.), the gene controlling stigma color is  very near the centromere of the chromosome carrying it. The allele G for green stigma is dominant  to g for red stigmas. A homozygous green autotetraploid strain is crossed with a homozygous red  autotetraploid strain.   a. What is the genotype of the Fl1? b. Show the types of gametes the Fl's may be expected to form and derive the expected  proportion of each. Show your solution.  c. What phenotypic ratio of green to red is expected if:  the Fl's are intercrossed? Show your solution.  the Fl's are crossed with red plants? Show your solution. d. If the G locus were 50 or more map units from the centromere, what types and proportions  of gametes would the Fl be expected to produce? Derive the expected F2 phenotypic ratio.
Knowledge Booster
Background pattern image
Biology
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
Text book image
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
How to solve genetics probability problems; Author: Shomu's Biology;https://www.youtube.com/watch?v=R0yjfb1ooUs;License: Standard YouTube License, CC-BY
Beyond Mendelian Genetics: Complex Patterns of Inheritance; Author: Professor Dave Explains;https://www.youtube.com/watch?v=-EmvmBuK-B8;License: Standard YouTube License, CC-BY