Human Biology (MindTap Course List)
11th Edition
ISBN: 9781305112100
Author: Cecie Starr, Beverly McMillan
Publisher: Cengage Learning
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Chapter 19, Problem 3SQ
Summary Introduction
Introduction: A trait in genetics is a qualitative or quantitative measure in genetics. A trait is often observed morphologically.
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Chapter 19 Solutions
Human Biology (MindTap Course List)
Ch. 19 - Define the difference between (a) gene and allele,...Ch. 19 - Prob. 2RQCh. 19 - What is probability, and how is it applied in...Ch. 19 - What is independent assortment? Does independent...Ch. 19 - Alleles are ___________. a. alternate forms of a...Ch. 19 - A heterozygote has _____. a. only one of the...Ch. 19 - Prob. 3SQCh. 19 - Offspring of a cross AA aa are ______. a. all AA...Ch. 19 - Prob. 5SQCh. 19 - Prob. 6SQ
Ch. 19 - Which statement best fits the principle of...Ch. 19 - Prob. 8SQCh. 19 - Prob. 9SQCh. 19 - Prob. 10SQCh. 19 - One gene has alleles A and a. Another has alleles...Ch. 19 - Still referring to Problem 1, what will be the...Ch. 19 - Go back to Problem 1, and assume you now study a...Ch. 19 - The young woman shown at right has albinismvery...Ch. 19 - When you decide to breed your Labrador retriever...Ch. 19 - The ABO blood system has been used to settle cases...Ch. 19 - Prob. 7CTCh. 19 - A man is homozygous dominant for ten different...Ch. 19 - Prob. 9CTCh. 19 - Bill and Marie each have flat feet, long...Ch. 19 - You decide to breed a pair of guinea pigs, one...
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- A pair of contrasting characterscontrolling the same trait is called:A. factors B. lociC. allele D. lineagearrow_forwardA man with blood type A and a woman of blood type B have a baby girl of blood type O. The man sues his wife for divorce, on the grounds that it is not possible for the baby to be theirs (since the blood type is not A, B. or AB). Evaluate the lawsuit on the basis of genetics (A, B alleles are co-dominant over the recessive O allele). IA = A allele IB = B allele iO = O allelearrow_forwardWhich of the following is a phenotype? a. Aa b. red hair c. Heterozygous d. DNAarrow_forward
- A recessive trait will be observed in individuals that are ________ for that trait. a. heterozygous b. homozygous or heterozygous c. homozygous d. diploidarrow_forwardWhat is the reason for doing a test cross? a. to identify heterozygous individuals with the dominant phenotype b. to determine which allele is dominant and which is recessive c. to identify homozygous recessive individuals in the F2 d. to determine if two genes assort independentlyarrow_forwardIn genetics, F stands for filial, which means ________. a. friendly c. final b. offspring d. hairlikearrow_forward
- An organism’s observable traits constitute its______ . a. phenotype c. genotype b. variation d. pedigreearrow_forwardMr. and Mrs. Flynn are concerned because their new baby doesn't resemble either of them and has type O blood. Mr. Flynn is type A and Mrs. Flynn is type B. They're sure that it's impossible to have a baby with a different blood type than the parents, and so they conclude that a mistake has been made. Are they correct? Explain your answer. Be specific. Use the correct blood alleles (IA, IB, i) in your explanation. genotypes:arrow_forwardTay–Sachs disease is caused by recessive alleles on anautosome. In which case(s) could two parents with anormal phenotype have a child with Tay–Sachs?a. Both parents are homozygous for a Tay–Sachs allele.b. Both parents are heterozygous for a Tay–Sachsallele.c. One parent is homozygous for a Tay–Sachs allele,and the other is heterozygous.arrow_forward
- The pedigree below represents an autosomal recessive disease. What characteristic(s) of the pedigree supports this statement? Write the genotypes and their genotype probabilities in fractions and percentagesarrow_forwardThe symbol "F" in the results of a testcross stands for A)recessive B)filialC)"faulty" or unexpected resultsD)first trait to show upE)dominantarrow_forwarda)recessive epistasis b)duplicate recessive epistasis c)normal non-allelic gene interaction d)normal allelic gene interactionarrow_forward
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