Scenario: In a species of butterflies, the allele for red wings (R) is dominant over blue wings (r) and the allele for long antennae (T) is dominant over short antennae (t). You cross starting two pure- breeding lineages, one that has red wings and short antennae and the other that has blue wings and long antennae. You then do a test cross of the F1 to determine whether the traits are linked. You collect 10 red-winged butterflies with long antennae, 9 red-winged butterflies with short antennae, 8 blue-winged butterflies with long antennae, and 5 blue-winged butterflies with short antennae. Use a chi-square test to evaluate whether the two traits are unlinked. Report your results by completing the following: • Expected # red wings, long antennae • Expected # blue wings, long antennae · Expected # red wings, short antennae • Expected # blue wings, short antennae Calculate your chi-square value and bring it to class but don't report it here. How many degrees of freedom? Accept or reject the null hypothesis?
Scenario: In a species of butterflies, the allele for red wings (R) is dominant over blue wings (r) and the allele for long antennae (T) is dominant over short antennae (t). You cross starting two pure- breeding lineages, one that has red wings and short antennae and the other that has blue wings and long antennae. You then do a test cross of the F1 to determine whether the traits are linked. You collect 10 red-winged butterflies with long antennae, 9 red-winged butterflies with short antennae, 8 blue-winged butterflies with long antennae, and 5 blue-winged butterflies with short antennae. Use a chi-square test to evaluate whether the two traits are unlinked. Report your results by completing the following: • Expected # red wings, long antennae • Expected # blue wings, long antennae · Expected # red wings, short antennae • Expected # blue wings, short antennae Calculate your chi-square value and bring it to class but don't report it here. How many degrees of freedom? Accept or reject the null hypothesis?
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,...
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Genetic Variation
Genetic variation refers to the variation in the genome sequences between individual organisms of a species. Individual differences or population differences can both be referred to as genetic variations. It is primarily caused by mutation, but other factors such as genetic drift and sexual reproduction also play a major role.
Quantitative Genetics
Quantitative genetics is the part of genetics that deals with the continuous trait, where the expression of various genes influences the phenotypes. Thus genes are expressed together to produce a trait with continuous variability. This is unlike the classical traits or qualitative traits, where each trait is controlled by the expression of a single or very few genes to produce a discontinuous variation.
Question
Transcribed Image Text:Scenario: In a species of butterflies, the allele for red wings (R) is dominant over blue wings (r) and
the allele for long antennae (T) is dominant over short antennae (t). You cross starting two pure-
breeding lineages, one that has red wings and short antennae and the other that has blue wings and
long antennae. You then do a test cross of the F1 to determine whether the traits are linked.
You collect 10 red-winged butterflies with long antennae, 9 red-winged butterflies with short
antennae, 8 blue-winged butterflies with long antennae, and 5 blue-winged butterflies with short
antennae. Use a chi-square test to evaluate whether the two traits are unlinked. Report your results
by completing the following:
• Expected # red wings, long antennae
• Expected # blue wings, long antennae
· Expected # red wings, short antennae
• Expected # blue wings, short antennae
Calculate your chi-square value and bring it to class but don't report it here.
How many degrees of freedom?
Accept or reject the null hypothesis?
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