Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 13, Problem 1SQ
Summary Introduction
Concept introduction: The pair of chromosome where one of the pair is of maternal source and the other is of paternal source that has genes in the same loci with variable alleles of the gene is called as homologous chromosomes. Allele is the modification of the gene. Alleles are of two types namely dominant and recessive.
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Students have asked these similar questions
Retinitis pigmentosa, a form of blindness in man, maybe caused either by a dominant autosomal gene R, or a recessive autosomal gene a. An afflicted man whose parents are both normal marries a woman with genotype AaRr. a. What proportion of the children are expected to suffer from this affliction if R and A are inherited independently?
b. If this couple want to have normal children only, what isthe probability of having normal children?
Independent assortment means thata. two genes tend to be inherited together.b. which allele of a gene is included in a gamete has noeffect on which allele of a second gene is included in thesame gamete.c. which allele of a gene is included in a gametedetermines which allele of a second gene is included inthe same gamete.d. homologous chromosomes do not separate during meiosis.
Chromosomes undergo division during meiosis. Such chromosomal behaviors are consistent with Mendel's laws of
a.
Unit Characters
b.
None of these
c.
Dominance and Recessiveness
d.
Independent Assortment
e.
Secondary Nondisjunction
Chromosomes undergo division during meiosis. Such chromosomal behaviors are consistent with Mendel's laws of
a. Unit Characters
b. None of these
c. Dominance and Recessiveness
d. Independent Assortment
e. Secondary Nondisjunction
Chapter 13 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 13 - Prob. 1DAACh. 13 - Prob. 2DAACh. 13 - Prob. 3DAACh. 13 - Prob. 1SQCh. 13 - An organisms observable traits constitute its...Ch. 13 - Prob. 3SQCh. 13 - Prob. 4SQCh. 13 - The offspring of the cross AA aa are ________. a....Ch. 13 - Refer to question 5. Assuming complete dominance,...Ch. 13 - A testcross is a way to determine ________. a....
Ch. 13 - Assuming complete dominance, a cross between...Ch. 13 - The probability of a crossover occurring between...Ch. 13 - True or false? All traits are inherited in a...Ch. 13 - One gene that affects three traits is an example...Ch. 13 - The phenotype of individuals heterozygous for...Ch. 13 - _______ in a trait is indicated by a bell curve....Ch. 13 - Match the terms with the best description. ______...Ch. 13 - Mendel crossed a true-breeding pea plant with...Ch. 13 - Assuming that independent assortment occurs during...Ch. 13 - Refer to problem 2. Determine the predicted...Ch. 13 - For each genotype listed, what allele combinations...Ch. 13 - Prob. 5GPCh. 13 - Suppose you identify a new gene in mice. One of...Ch. 13 - Mutations in the TYR gene may render its enzyme...Ch. 13 - In sweet pea plants, an allele for purple flowers....Ch. 13 - Red-flowering snapdragons are homozygous for...
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- When one examines the pattern of inheritance of a trait and finds that it is transmitted from fathers to sons to grandsons (never appearing in the females genotype) what is the conclusion about the inheritance pattern? a. Sex linked b. Sex limited С. Sex related d. X linked e. Sex influenced Red-Green color blindness a. Has its genetic determination on the x chromosome b. Affects more males than females С. Is influenced by somatic sex differentiation d. A and b e. All of thesearrow_forwardPercentage of crossing over is more when ______ A. Genes are located in a different cell B. Genes are not linked C. linked genes are located close to each other D. linked genes are located far apart from each otherarrow_forwardDuring the study of your genetics course, you are learning the different developmental stages of a unique Tsetse fly, named defsis-timen, and you discover differences in their developmental pattern i.e. unusual and normal...... Rest of the question is in picture Answer part b and c And in part c its unlinked genes not unlinedarrow_forward
- Color blindness is an X-linked trait caused by a recessive alle A carrier female marries a normal male a. How many male offspring can be expected to be color-blind and have a normal vison? b. How many female offspring can be expected to be carriers and to be normal?arrow_forwardHemophilia is a disease caused by a gene found on the X chromosome. Therefore, it is a sex-linked disease which is caused by the recessive allele. Suppose, a man with hemophilia marries a woman who is homozygous dominant for the trait, what is the chance of having children who are hemophiliacs? (XH = normal; Xh= hemophiliac) * a. 0% b. 75% c. 100% d. 25%arrow_forwardplease answer item no.4, 5, and 6 pleaseee.arrow_forward
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