Pearson eText Biology: Life on Earth with Physiology -- Instant Access (Pearson+)
Pearson eText Biology: Life on Earth with Physiology -- Instant Access (Pearson+)
12th Edition
ISBN: 9780135755785
Author: Gerald Audesirk, Teresa Audesirk
Publisher: PEARSON+
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Chapter 11, Problem 5MC
Summary Introduction

Introduction:

Any individual which shows a recessive phenotype for a particular trait always carries homozygous recessive genotype, whereas individual showing dominant phenotype can carry homozygous genotype or heterozygous genotype. To determine the genotype of an organism with phenotypically dominant trait, a test cross is performed.

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Identify the term that best matches the definition or description given. a. incomplete dominance b. codominance f. linked genes g. sex-linked trait h. bioinformatics c. heterozygous advantage d. continuous variation i. genetic profile j. genomics e. polygenic trait 61. a trait controlled by many genes 62. a trait found on the X or Y chromosome 63. Neither allele completely conceals the other. 64. when there is a survival benefit to individuals with two different alleles 65. using computer technology to analyze databases of information 66. Both alleles are equally expressed. 67. genes that are on the same chromosome 68. a range in gene expression resulting from the activity of many genes 69. the complete genotype of an individual 70. the study of the complex interactions in genes resulting in phenotypes
The chart below is showing 4 generations of a family that is affected by a hereditary disease. a. Is the disorder being tracked dominant or recessive? How do you know? b. There is only one possible genotype for person C. True or False? c. What are the possible genotypes for person A? d. What are the possible genotypes for person B?, e. If two people with the same genotypes as person C's spouse and person A's spouse had a child, what is the probability that the child will be affected by this genetic disorder? (draw a Punnett square using the correct genotypes to help you). % chance offspring will be affected % chance offspring will not be affected
Which of the following does not have an environmental factor thataffects the distribution of the phenotype? a. phenylketonuria                        c. heightb. skin color                                  d. Marfan syndrome

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Pearson eText Biology: Life on Earth with Physiology -- Instant Access (Pearson+)

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