. In a dihybrid test cross, the following results were obtained: A‑B‑, 121; A‑bb, 107; aaB-, 115; and aabb, 93. Do these data approximate a dihybrid test cross ratio with independent assortment? Complete the following table and answer the related questions. PhenotypeOE(O-E)(O-E)2(O-E)2/EA_B_121 A_bb107 aaB_115 aabb93 Totals X2=Instructor’s Calculation of X2= 4.0367 In interpreting this X2 value, you have ____3_______degrees of freedom. In this case do you accept/reject the hypothesis that these data approximate a dihybrid test cross ratio with independent assortment? What is the probability that the deviations are due to chance alone?

A dihybrid cross is a type of cross in which two traits are involved . Each trait is illustrated in…

Answered: In a dihybrid test cross, the following…

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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. In a dihybrid test cross, the following results were obtained: A‑B‑, 121; A‑bb, 107; aaB-, 115; and aabb, 93. Do these data approximate a dihybrid test cross ratio with independent assortment? Complete the following table and answer the related questions.

Phenotype	O	E	(O-E)	(O-E)²	(O-E)²/E
A_B_	121
A_bb	107
aaB_	115
aabb	93
Totals			X²= Instructor’s Calculation of X²= 4.0367

In interpreting this X² value, you have ____3_______degrees of freedom.

In this case do you accept/reject the hypothesis that these data approximate a dihybrid test cross ratio with independent assortment?

What is the probability that the deviations are due to chance alone?

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