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Chapter 14 15 Test Corrections

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Chapter 14 15 Test Corrections
Emily East
November 30, 2014
AP Biology: 4th Hour
Chapter 14 & 15 Test Corrections
1.) Why did the F1 offspring of Mendel’s classic pea cross always look like one of the two parental varieties? D. One phenotype was completely dominant over another
This answer can be found on page 264 of the book, “All the F1 hybrids produced round seeds; this is the dominant trait for seed shape.”
3.) How many unique gametes could be produced through independent assortment by an individual with the genotype AaBbCCDdEE? B. 8 This answer can be found on page 268, Figure 14.8
4.) The individual with genotype AaBbCCDdEE can make many kinds of gametes. Which of the following is the major reason? D. Different possible assortment of chromosomes into gametes This answer can be found on page 268, Figure 14.8
6.) Which of the following differentiates between independent assortment and segregation?
A. The law of independent assortment requires two or more genes relative to one another This answer can be found on page 266, Figure 14.5.
11.) The fact that all seven of the pea plant traits studied by Mendel obeyed the principle of independent assortment most probably indicates which of the following?
D. All of the genes controlling the traits behaved as if they were on different chromosomes. This answer can be found on page 265, Figure 14.1,
14.) In the cross AaBbCc x AaBbCc, what is the probability of producing the genotype AABBCC? E. 1/64
This is the answer because of the law of multiplication which indicates ¼^3 which results in 1/64.
21.) What is the probability that individual III-1 is Ww? E. 1
This answer is 1 because it got a W from its father meaning it had to get a w from its mother.
25.) When Thomas Hunt Morgan crossed his red-eyed F1 generation flies to each other, the F2 generation included both red and white-eyed flies. Remarkably, all the white-eyed flies were male. What was the explanation for this result? B. The gene involved is on the X chromosome.
This answer

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