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 18TYK
Summary Introduction
Introduction: Gene is the basic functional unit of heredity. A gene is a sequence of
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Students have asked these similar questions
All of the following human genetic diseases exhibit maternal inheritance EXCEPT:
A. Leber's hereditary optic neuropathy
B. Myoclonic epilepsy
C. Kearnes-Sayre syndrome
D. Edwards syndrome
When 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 effect
A mother has a high heteroplasmic load in her germ cells (cells that will produce her eggs). Which of the following statements is correct?
A. ALL of her offspring are guaranteed to inherit the disease associated with this heteroplasmic load.
B. She can only pass the mitochondrial mutation to her daughters.
C. ALL of her eggs that can potentially be fertilized will have a high heteroplasmic load.
D. Cell division could lead to uneven distribution of mitochondria.
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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- Locus heterogeneity refers to a genetic disorder thata. has a heterogeneous phenotype.b. is caused by mutations in two or more different genes.c. involves a structural change in multiple chromosomes.d. is inherited from both parents.arrow_forwardWhich of the following statements describes an example of a phenocopy? Explain your reasoning. a. Phenylketonuria results from a recessive mutation that causes light skin as well as intellectual disability. b. Human height is influenced by genes at many different loci. c. Dwarf plants and mottled leaves in tomatoes are caused by separate genes that are linked. d. Vestigial wings in Drosophila are produced by a recessive mutation. This trait is also produced by high temperature during development. e. Intelligence in humans is influenced by both genetic and environmental factors.arrow_forwardIf a genetic disease is inherited as an autosomal recessive, one would expect to find which of the following? A. Two affected individuals never have an unaffected child. B. Two affected individuals have affected male offspring but no affected female children. C. If a child has the disease, one of his or her grandparents will have had it. D. In a marriage between an affected individual and an unaffected one, all the children are unaffected.arrow_forward
- Glucose-6-phosphate dehydrogenase (G6PD) deficiency is a disorder that affects the normal function of red blood cells and can eventually lead to anemia. The trait is controlled by a recessive allele found on 4. the X chromosome. An affected son was born to a man and woman who were unaffected. The woman's mother was affected while the father was normal. a. Indicate the gene notation. b. Give the genotypes of the affected boy's parents. Derive the genotypic and phenotypic ratios for the offspring. Show and label your solutions properly. What is the probability that they will have a phenotypically normal daughter as their first child? C. d.arrow_forwardIn genetic maternal effect, the phenotype of the individual is determined by which of these statements? A. The sex of the parent who transmits the gene B. The nuclear genotype of the maternal parent C. The sex of the individual with only one sex able to express the phenotype D. Cytoplasmic genes usually located in the mitochondria E. A combination of environmental factors and the genotype of the individualarrow_forwardIn humans, a dimple in the chin is a dominant characteristic controlled by a single gene.a. A man who does not have a chin dimple haschildren with a woman with a chin dimple whose mother lacked the dimple. What proportion of theirchildren would be expected to have a chin dimple?b. A man with a chin dimple and a woman who lacksthe dimple produce a child who lacks a dimple.What is the man’s genotype?c. A man with a chin dimple and a nondimpledwoman produce eight children, all having the chindimple. Can you be certain of the man’s genotype?Why or why not? What genotype is more likely,and why?arrow_forward
- Fruit 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_forwardA woman with a rare autosomal recessive disorder was told that it was unlikely that her children would have the disorderas her husband did not have it. However, her first child has the disorder. a. What is the most likely explanation? b. Diagram the cross between the woman and her husband using a Punnett square, give the genotypic ratio (GR) and phenotypic ratio (PR) from the Punnett square. c. Based on the Punnett square results, what is the chance that her next child will have the disorder?arrow_forwardWhich of the following traits or diseases is(are) determined bynuclear genes?A. Snail coiling patternB. Prader-Willi syndromeC. Leber hereditary optic neuropathyarrow_forward
- In humans, the genetic disease cystic fibrosis is caused by a recessive allele (a). The normal (healthy) allele is dominant (A). What is the genotype of someone who has cystic fibrosis? What are the two different genotypes that a healthy person could have? If two people were both heterozygous for the cystic fibrosis gene, what fraction of their children would be likely to have this disease? Hint: Draw a Punnett square to figure it out.arrow_forwardIf a mouse has a dominant phenotype (P_), how would you determine if it is homozygous (PP) or heterozygous (Pp)? Select one: O a. O b. O c. O d. O e. cross it to a mouse with the dominant trait but a similarly unknown genotype. cross it to a mouse with the recessive trait. cross it to a homozygous dominant mouse. it cannot be determined. cross it to a heterozygous dominant mouse. Oarrow_forwardAlbinism is inherited as a recessive trait in humans. If the parents are both heterozygous for the trait, what is the probability of obtaining the following: a. 3 albino children? b. 2 normal girls? c. 4 albino boys? d. first 4 children will be normal and the last 2 children will be albino? e. 4 normal children and 2 albinos in any order?arrow_forward
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How to solve genetics probability problems; Author: Shomu's Biology;https://www.youtube.com/watch?v=R0yjfb1ooUs;License: Standard YouTube License, CC-BY
Beyond Mendelian Genetics: Complex Patterns of Inheritance; Author: Professor Dave Explains;https://www.youtube.com/watch?v=-EmvmBuK-B8;License: Standard YouTube License, CC-BY