Homework Help is Here – Start Your Trial Now!
Science
Biology
n differences betweer

n differences betweer

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
Questions
1. List the phenotypes and expected proportions of the F, flies from Exercise II. Scenario 1: vestigial gene is on chromosome 2 Nonrecombinant DnenotyPe Recombinant DhenotyRe [Cht vgte] wild type [ cntvgte] E bony Ccn Vg e] Cinnabar, vegista l Centvget] vegięteal Cinnabor, vegistal, ebony Scenario 2: vestigial gene is on chromosome 3 2. What are the main differences between the two scenarios regarding the F, flies? 3. Which chromosome is the vestigial gene on?
Transcribed Image Text:1. List the phenotypes and expected proportions of the F, flies from Exercise II. Scenario 1: vestigial gene is on chromosome 2 Nonrecombinant DnenotyPe Recombinant DhenotyRe [Cht vgte] wild type [ cntvgte] E bony Ccn Vg e] Cinnabar, vegista l Centvget] vegięteal Cinnabor, vegistal, ebony Scenario 2: vestigial gene is on chromosome 3 2. What are the main differences between the two scenarios regarding the F, flies? 3. Which chromosome is the vestigial gene on?
Then you would backcross the F, flies to the recessive flies, and observe the F, progeny numbers. In order to predict the progeny ratios, we need to consider two different scenarios: 1) vestigial gene is on chromosome 2 with cinnabar and 2) vestigial gene is on chromosome 3 with ebony. In order to help you get started, Figure 3.6 illustrates the P and F, generations for each scenario. If the vestigial gene is on chromosome 2 with cinnabar: a. P generation cn* vg* ete* cn vg* cn vg cn vg ее backcross the female F, flies with recessive parent F, generation cn* vg* e*e cn vg cn vg cn vg ее Fa? b. If the vestigial gene is on chromosome 3 with ebony: generation et vg* et vg* e vg e vg cn*cn+ x cn cn backcross the female F, flies with recessive parent F, generation et vg* e vg e vg e vg cn*cn cn cn Figure 3.6 1. Using your whiteboard complete Figure 3.6 by listing the phenotypes and the expected proportions of the F, flies for each scenario (you should have 8 phenotypic classes). Then transfer the information to #1 in the Data Sheet. Note: For the linked genes, you will not be able to predict exact progeny ratios, because recombination is a stochastic process. Rather you can only state whether you would expect a lower or higher number of progeny, because we expect recombination to happen rarely when genes are closely linked. 2. Looking at your F, flies for each scenario, what are the main differences? Answer this question in #2 of your Data Sheet. 3. Now let's work with some data. Suppose you obtained the following flies in your F, generation. Based on this data, which chromosome is the vestigial gene on? Answer this in #3 on your Data Sheet. Phenotype # of flies cinnabar 42 120 cinnabar, ebony, vestigial 16 ebony, vestigial vestigial 33 cinnabar, ebony 8 wild-type 114 ebony 339 cinnabar, vestigial 328
Transcribed Image Text:Then you would backcross the F, flies to the recessive flies, and observe the F, progeny numbers. In order to predict the progeny ratios, we need to consider two different scenarios: 1) vestigial gene is on chromosome 2 with cinnabar and 2) vestigial gene is on chromosome 3 with ebony. In order to help you get started, Figure 3.6 illustrates the P and F, generations for each scenario. If the vestigial gene is on chromosome 2 with cinnabar: a. P generation cn* vg* ete* cn vg* cn vg cn vg ее backcross the female F, flies with recessive parent F, generation cn* vg* e*e cn vg cn vg cn vg ее Fa? b. If the vestigial gene is on chromosome 3 with ebony: generation et vg* et vg* e vg e vg cn*cn+ x cn cn backcross the female F, flies with recessive parent F, generation et vg* e vg e vg e vg cn*cn cn cn Figure 3.6 1. Using your whiteboard complete Figure 3.6 by listing the phenotypes and the expected proportions of the F, flies for each scenario (you should have 8 phenotypic classes). Then transfer the information to #1 in the Data Sheet. Note: For the linked genes, you will not be able to predict exact progeny ratios, because recombination is a stochastic process. Rather you can only state whether you would expect a lower or higher number of progeny, because we expect recombination to happen rarely when genes are closely linked. 2. Looking at your F, flies for each scenario, what are the main differences? Answer this question in #2 of your Data Sheet. 3. Now let's work with some data. Suppose you obtained the following flies in your F, generation. Based on this data, which chromosome is the vestigial gene on? Answer this in #3 on your Data Sheet. Phenotype # of flies cinnabar 42 120 cinnabar, ebony, vestigial 16 ebony, vestigial vestigial 33 cinnabar, ebony 8 wild-type 114 ebony 339 cinnabar, vestigial 328
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
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