The following phenotypes and numbers were observed as the progeny of this test cross: Unbanded, brown shells Banded, yellow shells Unbanded, yellow shells Banded, brown shells 50 40 50 60 Total 200 Conduct a test of independence to test whether these 2 genes are independent or not. e. Complete the following contingency table for this cross: Bb bb f. Use your contingency table to calculate the expected # of progeny for each of the following phenotypic progeny classes, showing all calculations: Unbanded, brown shells Banded, yellow shells Unbanded, yellow shells Banded, brown shells

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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The following phenotypes and numbers were observed as the
progeny of this test cross:
Unbanded, brown shells
50
Banded, yellow shells
Unbanded, yellow shells
Banded, brown shells
40
50
60
Total
200
Conduct a test of independence to test whether these 2 genes are
independent or not.
e. Complete the following contingency table for this cross:
Yyy
Bb
bb
f. Use your contingency table to calculate the expected # of progeny
for each of the following phenotypic progeny classes, showing all
calculations:
Unbanded, brown shells
Banded, yellow shells
Unbanded, yellow shells
Banded, brown shells
g. Calculate X2 to 2 decimal places:
Transcribed Image Text:The following phenotypes and numbers were observed as the progeny of this test cross: Unbanded, brown shells 50 Banded, yellow shells Unbanded, yellow shells Banded, brown shells 40 50 60 Total 200 Conduct a test of independence to test whether these 2 genes are independent or not. e. Complete the following contingency table for this cross: Yyy Bb bb f. Use your contingency table to calculate the expected # of progeny for each of the following phenotypic progeny classes, showing all calculations: Unbanded, brown shells Banded, yellow shells Unbanded, yellow shells Banded, brown shells g. Calculate X2 to 2 decimal places:
h. Calculate the degrees of freedom:
i. What is the corresponding P-value (Probability)?
j. What is the null hypothesis?
k. Do you ACCEPT or REJECT the null hypothesis?
1. Are these genes independent or linked?
Transcribed Image Text:h. Calculate the degrees of freedom: i. What is the corresponding P-value (Probability)? j. What is the null hypothesis? k. Do you ACCEPT or REJECT the null hypothesis? 1. Are these genes independent or linked?
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