Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN: 9781305251052
Author: Michael Cummings
Publisher: Cengage Learning
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Textbook Question
Chapter 5, Problem 15QP
Dizygotic twins:
- a. are as closely related as monozygotic twins
- b. are as closely related as non-twin siblings
- c. share 100% of their genetic material
- d. share 25% of their genetic material
- e. none of these
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In the context of genetic influence on individual differences, the degree of genetic influence typically
a.
increases from infancy through childhood, and then decreases from childhood through adulthood.
b.
decreases from infancy through adulthood.
c.
remains stable from infancy through adulthood.
d.
increases from infancy through adulthood.
. Which of the following terms applies to traits, such as human eye color, that are controlled by more than
one gene?
A. Codominant
B. Polygenic
C. Recessive
D. Sex-linked
. Assuming no involvement of the Bombay phenotype(in case you’ve already read ahead to Section 3.2):a. If a girl has blood type O, what could be the genotypes and corresponding phenotypes of her parents?b. If a girl has blood type B and her mother has bloodtype A, what genotype(s) and correspondingphenotype(s) could the other parent have?c. If a girl has blood type AB and her mother is alsoAB, what are the genotype(s) and correspondingphenotype(s) of any male who could not be thegirl’s father?
Chapter 5 Solutions
Human Heredity: Principles and Issues (MindTap Course List)
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- The difference between dominant and recessive traits is … Group of answer choices: A.genes for dominant traits are passed on preferentially. B.effects of recessive traits can be hidden by effects of dominant traits. C.recessive traits are deleterious (bad for the organism) and dominant traits are not. D.dominant genes produce proteins, recessive genes do not. E.dominant traits are more likely to be expressed in males.arrow_forwardWhich of the following statements correctly describes a Y-linked trait? A. It will always be expressed if present in female individuals B. It can be inherited by a daughter for her father C. It can be inherited by a son from his mother D. It will always be expressed if present in male individualsarrow_forwardMany genetic disorders are inherited in a recessive manner Select one: a. False b. Truearrow_forward
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- 3) Suppose that an allele, b, of a sex-linked gene, is recessive and lethal. A man marries a woman who is heterozygous for this gene. If this couple had 10 children, what would be the predicted sex ratio of these children (ratio of male children to female children)? (5 a) 1:1 b) 1.5:1 c) 2:1 d) 2.5:1arrow_forwardWhat must be true about the genotypes of parents who have a child who has an: a. dominant trait? b. recessive trait?arrow_forwardBriefly describe how twin studies can reveal whether or not the appearance of a trait is strongly influenced by genetics.arrow_forward
- Marfan Syndrome is a dominant trait inheritance in humans. It is a disorder that affects the connective tissue in many parts of the body. 1. What is/are the possible genotype/s of the children if both parents do not exhibit Marfan Syndrome disease? A. mm only B. Mm only C. MM only D. MM or Mm E. Mm or mm 2. What is the probability of having a normal child if the mother does not have the disease while her husband has the disease? A. 0% only B. 0% or 100% C. 0% or 50% D. 50% only E. 100% 3. What is the probability of having a girl child with Marfan Syndrome if both mother and father has the heterozygous genotype for the disease? A. 1/4 B. 1/2 C. 3/4 D. 3/8 E. 1/8 PLEASE ANSWER ALL THE QUESTIONS BECAUSE THEY ARE CONNECTED, THANK YOU!arrow_forwardA rare breed of Siamese cat has given birth to 3 kittens. What is the probability that all 3 are of the seam sex-either all male or all female? 3/8 1/2 1/4 2/3 None of these When one examines the pattern of inheritance of a deleterious gene and finds that it appears in fathers and grandsons only, what is the conclusion regarding the gene? a. Sex limited b. Sex linked C. Sex influenced d. Sex related e. None of these Pattern baldness Is found only in males b. Is due to a pair of sex linked genes a. С. Exerts its effect only in the homozygous state d. Behaves as a dominant in males and a recessive in females e. All of these are false . A monoecious organism, as corn, is one in which The female is the heterogametic sex a. b. Each individual (plant) produces two kinds of gametesarrow_forwardDefine the difference between (a) gene and allele, (b) dominant allele and recessive allele, (c) homozygote and heterozygote, and (d) genotype and phenotype.arrow_forward
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