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Mastering Biology Chapter 14 Study Guide Questions and Answers Fully Solved $14.49   Add to cart

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Mastering Biology Chapter 14 Study Guide Questions and Answers Fully Solved

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Mastering Biology Chapter 14 Study Guide

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  • October 25, 2024
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  • 2024/2025
  • Exam (elaborations)
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  • Mastering Biology
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Mastering Biology Chapter 14 Study
Guide

Look at the Punnett square, which shows the predicted offspring of the F2 generation
from a cross between a plant with yellow-round seeds (YYRR) and a plant with green-
wrinkled seeds (yyrr). Select the correct statement about wrinkled yellow seeds in the
F2 generation. - answerThe chance that an individual taken at random from the F2
generation produces wrinkled seeds is 25% and the chance that the same individual
produces yellow seeds is 75%.

Quantitative characters vary in a population along a continuum. How do such characters
differ from the characters investigated by Mendel in his experiments on peas? - answer
Quantitative characters are due to polygenic inheritance, the additive effects of two or
more genes on a single phenotypic character. A single gene affected all but one of the
pea characters studied by Mendel.

Select the correct explanation for the fact that a carrier of a recessive genetic disorder
does not have the disorder. - answerAffected individuals have recessive mutations, but
a carrier has a dominant mutation.

Each chromosome in this homologous pair possesses a different allele for flower color.
Which statement about this homologous pair of chromosomes is correct? -
answerThese homologous chromosomes represent a maternal and a paternal
chromosome.

When a dominant allele coexists with a recessive allele in a heterozygote individual,
how do they interact with each other? - answerThey do not interact at all.

Part A: What is the genotype of the man? - answerI A i

Part B: What is the genotype of the woman? - answerI B i

Part C: What is the genotype of the child? - answerii

Part D: What genotypes would you expect in future offspring from this marriage? Select
all that apply. - answerii
IAi
IBi
IAIB

, Part E: In what frequencies would you expect the offspring genotypes? Indicate the
frequency of each genotype by dragging the labels to the table. Labels may be used
once, more than once, or not at all. - answerall are 1/4

Part A: A black guinea pig crossed with an albino guinea pig produces 12 black
offspring. When the albino is crossed with a second black one, 7 blacks and 5 albinos
are obtained.
What is the best explanation for this genetic outcome? - answerAlbino (b) is a recessive
trait; black (B) is a dominant trait.

Part B: What are the genotypes of the parents in the first cross (the cross that produced
12 black offspring)? - answerBB x bb

Part C: What are the genotypes of the gametes and offspring in the first cross? -
answergametes: B and b; offspring: all Bb

Part D: What are the genotypes of the parents in the second cross (the cross that
produced 7 black and 5 albino offspring)? - answerBb x bb

Part E: What are the genotypes of the gametes and offspring in the second cross? -
answergametes: 1/2 B and 1/2 b (heterozygous parent) and b; offspring: 1/2 Bb and 1/2
bb

Part A: What fraction of this couple's children would be expected to have extra digits?
Express your answer using the slash symbol and no spaces (for example, 1/16). -
answer1/2

Based on this incomplete information, calculate the probability that if this couple has a
child, the child will have sickle-cell disease. Express your answer as a fraction using the
slash symbol and no spaces (for example, 1/16). - answer1/9

Assuming that both parents are heterozygous for the gene that causes the disease,
what is the probability that the second child will also have the disease? Express your
answer as a fraction using the slash symbol and no spaces (for example, 1/2). -
answer1/16

Part A: If two phenotypically normal tigers that are heterozygous at this locus are mated,
what percentage of their offspring will be cross-eyed? Express your answer using the
percent symbol and no spaces (for example, 10%). - answer25%

What percentage of cross-eyed tigers will be white? Express your answer using the
percent symbol and no spaces (for example, 10%). - answer100%

What is the probability that Charles and Elaine will have a baby with cystic fibrosis?
Express your answer as a fraction using the slash symbol and no spaces (for example,
1/16). - answer1/6

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