Number of flies observed Wildtype body color Males 20 20 Pink body color Female Males Females 14 39 47 Expected number of flies Wildtype body color Males Pink body color Females Female Males

Essentials of Pharmacology for Health Professions
7th Edition
ISBN:9781305441620
Author:WOODROW
Publisher:WOODROW
Chapter5: Abbreviations And Systems Of Measurement
Section: Chapter Questions
Problem 3CRQ
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I have a vial of F2 offspring resulting from a two-generation cross between true-breeding wildtype females and true-breeding pink-bodied males. I scored F2 phenotypes for a total of 120 flies and obtain the following data:

Based on the above observed data in the chart, determine the expected number of flies for the following three scenarios provided in a-c below.

1) The mutant allele is recessive and is located on an autosome:

Number of flies observed
Wildtype body color
Males
20
20
Pink body color
Female
Males
Females
14
39
47
Transcribed Image Text:Number of flies observed Wildtype body color Males 20 20 Pink body color Female Males Females 14 39 47
Expected number of flies
Wildtype body color
Males
Pink body color
Females
Female
Males
Transcribed Image Text:Expected number of flies Wildtype body color Males Pink body color Females Female Males
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