Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Chapter 15, Problem 6TYK
Summary Introduction
Introduction: Sex chromosomes are those chromosomes that play a crucial role in the determination of sex of an individual. They have important function in the development of sexual characteristics in the organisms.
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Color 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.
How do each of the following contribute to genetic variation in offspring? a. Crossing over
b. Random assortment of homologous chromosomes
c. Fertilization
Which of the following statements regarding the Y chromosome in mammals is TRUE?A. The Y chromosome is less than half the size of the X chromosome.B.Y chromosomes are most often present in egg cells and are not found in sperm cells.
C.Most female mammals have one Y chromosome.
D. The Y chromosome contains no protein-coding genes.
Chapter 15 Solutions
Study Guide for Campbell Biology
Ch. 15 - Complete the following summary of Morgans crosses...Ch. 15 - Two normal color-sighted individuals have two...Ch. 15 - In a testcross between a heterozygote tall,...Ch. 15 - With unlinked genes, an equal number of parental...Ch. 15 - The following recombination frequencies have been...Ch. 15 - a. What is the difference between an organism with...Ch. 15 - Prob. 7IQCh. 15 - Prob. 8IQCh. 15 - Mendels law of independent assortment applies to...Ch. 15 - You have found a new mutant phenotype in fruit...
Ch. 15 - Prob. 3SYKCh. 15 - Prob. 4SYKCh. 15 - Thomas Hunt Morgan firmly established the location...Ch. 15 - Prob. 2TYKCh. 15 - Sex-linked traits a. are coded for by genes...Ch. 15 - Prob. 4TYKCh. 15 - Prob. 5TYKCh. 15 - Prob. 6TYKCh. 15 - Prob. 7TYKCh. 15 - Prob. 8TYKCh. 15 - Prob. 9TYKCh. 15 - Prob. 10TYKCh. 15 - Consider three genes on the X chromosome: A, B,...Ch. 15 - Prob. 12TYKCh. 15 - Genomic imprinting a. explains cases in which the...Ch. 15 - Prob. 14TYKCh. 15 - Prob. 15TYKCh. 15 - Suppose that alleles for an X-linked character for...Ch. 15 - Some girls who fail to undergo puberty are found...Ch. 15 - Prob. 18TYKCh. 15 - The genetic event that results in Turner syndrome...Ch. 15 - Prob. 20TYKCh. 15 - Prob. 1GPCh. 15 - Prob. 2GPCh. 15 - Prob. 3GPCh. 15 - Prob. 4GPCh. 15 - Prob. 5GPCh. 15 - Red-green color blindness is caused by a...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which of the following is least likely to produce genetic variation in the offspring of an individual? (a) a DNA replication error caused by DNA polymerase in a body cell of the individual (b) a cross over event during meiosis that creates a new combination of alleles in the gametes (c) independent assortment of chromosomes during meiosis that creates a new combination of alleles in the gametes (d) the random fertilization of an egg cell by a sperm cell during sexual reproductionarrow_forwardNondisjunction can happen in males and females. It has been found to correlate with advanced maternal age but not paternal age. Why is that? A. Because estrogen promotes non-disjunction. B. Because oogenesis has a prolonged prophase and is more prone to have errors with maternal age. C. Because more mutations can happen in females. D. All of the above.arrow_forwardFruit flies are very useful model organisms that have been used to study genetics. One mutant recessive trait in fruit flies is called "eyeless" because it causes flies to have no eyes. Cross an eyeless fly with a homozygous normal fly. a. Draw the Punnett square. b. What is the genotyoe ratio of the offspring? c. What is the phenotype ratio of the offspring? d. What genetic problem is this? (monohybrid, dihybrid or multiple allele)arrow_forward
- Is it possible for a bald man and a nonbald woman to have a nonbald son and bald daughter? A. Yes, if the father is homozygous and the mother is heterozygous. B. Yes, if both parents are heterozygous. C. No, it is not possible. D. Yes, if the father is heterozygous and the mother is homozygous.arrow_forwardwhich of the following would not be a sex-linked trait? (choose one answer only) A. tortoise shell cat (fur) B. brown eyes vs. blue eyes in humans C. red eye vs. white eye in fruit flies D. red green colorblindness E. hemophilia vs. normal blood clottingarrow_forwardA woman with normal color vision whose father wascolor-blind mates with a man with normal colorvision.a. What do you expect to see among their offspring?b. What would you expect if it was the normal man’sfather who was color-blind?arrow_forward
- a man has simpson syndrome, an addiction to certain television series. his wife does not have this syndrome. the couple has four children. A) can this syndrome be caused by autosomal recessive gene? B) Can it be caused by an x linked recessive allele ? C) What about wiggly ears?arrow_forwardScurs in cattle is a sex-influenced trait. A cow with no scurs whosemother had scurs had offspring with a bull with scurs whose fatherhad no scurs. What are the probabilities of each of the followingcombinations of offspring? A. The first offspring will not have scurs.B. The first offspring will be a male with no scurs.C. The first three offspring will be females with no scursarrow_forwardIn humans, free earlobes are a dominant characteristic over attached earlobes. A person who has homozygous free earlobes marries someone who has attached earlobes. What percentage of the offspring exhibit the dominant trait, free earlobes?arrow_forward
- Red-green color blindness is a recessive trait in humans. The locus is on the X chromosome. If a color blind woman marries a normal vision man, what kind of children could they have? Group of answer choices A. color blind daughters, normal vision sons B. color blind sons, normal vision daughters C. all color blind D. all normal visionarrow_forwardAs in many animals, albino coat color is a recessive trait in guineapigs. Researchers removed the ovaries from an albino female guineapig and then transplanted ovaries from a true-breeding black guineapig. They then mated this albino female (with the transplanted ovaries) to an albino male. The albino female produced three offspring.What were their coat colors? Explain the resultsarrow_forwardWhat must be true for a male individual to be a carrier of a Y-linked recessive allele? A. The gene has no other alleles. B. The gene is only expressed in females. C. The gene is silenced on the Y chromosome. D. The gene is also found on the X chromosome.arrow_forward
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