Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 17, Problem 3TY
Summary Introduction
Introduction: An allele is defined as a variant of a gene responsible for coding for a specific character. There are two different alleles for each
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The AB blood type in the ABO blood group
is an example of
a. dominant versus recessive alleles.
b. incomplete dominance.
C. codominance.
d. a polygenic trait.
e. sex-linked inheritance.
Which statement about the pattern of inheritance for a rare dominant allele is true?
OA. Unaffected mothers have sons who are affected and daughters who are carriers.
B. Every affected person has an affected parent.
C. Affected parents do not produce affected children.
D. Unaffected fathers have sons who are affected and daughters who are carriers.
E. Unaffected parents can produce children who are affected.
The AB blood type in the ABO blood group is an example ofa. dominant versus recessive alleles.b. incomplete dominance.c. codominance.d. a polygenic trait.e. sex-linked inheritance.
Chapter 17 Solutions
Biology
Ch. 17.1 - Prob. 1CCCh. 17.1 - Prob. 2CCCh. 17.1 - Prob. 3CCCh. 17.1 - Prob. 4CCCh. 17.1 - Mendels Laws of Inheritance Concept Check: What...Ch. 17.2 - Prob. 1CSCh. 17.2 - Prob. 2CSCh. 17.2 - Prob. 1CCCh. 17.3 - Prob. 1CCCh. 17.3 - Prob. 2CC
Ch. 17.4 - Prob. 1CCCh. 17.4 - Prob. 1EQCh. 17.4 - Prob. 2EQCh. 17.4 - Prob. 3EQCh. 17.5 - Prob. 1CSCh. 17.5 - Prob. 1CCCh. 17.6 - Prob. 1CCCh. 17 - Prob. 1TYCh. 17 - During which phase of nuclear division does the...Ch. 17 - Prob. 3TYCh. 17 - Which of Mendels laws cannot be observed in a...Ch. 17 - During a __________blank, an individual with the...Ch. 17 - Prob. 6TYCh. 17 - Prob. 7TYCh. 17 - A hypothetical flowering plant species produces...Ch. 17 - Genes located on a sex chromosome are said to be...Ch. 17 - Prob. 10TYCh. 17 - Prob. 1CQCh. 17 - A cross is made between individuals having the...Ch. 17 - Core Concept: Systems We can view life as a...Ch. 17 - Discuss the principles of the chromosome theory of...Ch. 17 - When examining a human pedigree, what patterns do...
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- Which of the following is true of recessive sex-linked genes? A. A female showing the trait will pass it on to all of her sons who will all show the trait. B. A female showing the trait will pass it on to all of her daughters who will all show the trait. C. A male showing the trait will pass it on to all of his sons who will all show the trait. D. A male showing the trait will pass it on to all of his daughters who will all show the trait.arrow_forwardWhen the phenotype of the offspring is determined by endoparasites in the father it is… a. epistasis b. due to genes located in the mitochondria. c. a maternal effect d. non-nuclear inheritance e. a non-additive genetic effectarrow_forwardIn diseases with a recessive inheritance linked to sex (X chromosome), from the mother: A. 50% of women and 50% of men are affected. B. The woman is always affected by the disease. C. The man is always affected by the disease. D. 50% of women are affected.arrow_forward
- Which statement about the pattern of inheritance for a recessive X-linked allele is true? A. Unaffected parents can produce daughters who are affected. B. Unaffected parents can have sons who are affected and daughters who are carriers. C. Unaffected fathers can be carriers. D. Affected parents do not produce affected children. E. Every affected person has an affected parent.arrow_forwardIn order for a male to inherit a sex-linked (X-linked) disorder, he must receive the allele from: a. his mother only. b. either his mother or father. c. his father only. d. both his mother and father.arrow_forwardThere are several forms of allelic genes interaction. At one of the forms a homozygous and a heterozygous organisms have the same phenotype. Which of the below mentioned forms of gene interaction can it be? Select one: a. Complete dominance c. Incomplete dominance d. Complementarity e. Codominance O b. Overdominancearrow_forward
- Hemophilia 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_forwardch of the following best describes why males cannot be carriers of sex-linked traits? A. Males cannot be carriers because their Y chromosome makes them immune to sex-linked traits B. This is incorrect, males can be carriers of sex-linked traits O C. Males cannot be carriers because they only inherit one X chromosome, either having the trait or not O D. Males cannot be carriers because their mothers pass on an X chromosome without the sex-linked traitarrow_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. Predict the genotype of the man. (XH = normal; Xh= hemophiliac) * a. XH Y b. XHXh c. XhXh d. Xh Yarrow_forward
- A heterozygous individual is crossed with a homozygous recessive individual. a. Draw a Punnett square to represent this cross. b. What is the probability that an offspring will have a homozygous genotype? c. What is the probability that an offspring will have a dominant phenotype? d. What is the probability that three offspring will be produced that all carry the recessive allele but do not express the recessive phenotype?arrow_forwardWhich of the following traits or diseases is(are) determined bynuclear genes?A. Snail coiling patternB. Prader-Willi syndromeC. Leber hereditary optic neuropathyarrow_forwardColor blindness in men is controlled by a recessive gene located on the X chromosome. Can a brother and sister with color blindness have another normal brother? A. Yes, if the mother is a carrier. B.Yes, if the mother is homozygous. C.Yes, if the father is heterogametic. D.Yes, if the father is a carrier.arrow_forward
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