Concepts of Genetics (11th Edition)
11th Edition
ISBN: 9780321948915
Author: William S. Klug, Michael R. Cummings, Charlotte A. Spencer, Michael A. Palladino
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 4, Problem 4PDQ
In foxes, two alleles of a single gene, P and p, may result in lethality (PP), platinum coat (Pp), or silver coat (pp). What ratio is obtained when platinum foxes are interbred? Is the P allele behaving dominantly or recessively in causing (a) lethality; (b) platinum coat color?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Two brown bears have cubs in late spring. The mother bear has the phenotype for long front claws. The mother bear has the genotype (Aa), while the father has the same genotype as the mother.
A) What percentage of the offspring will have long claws?
Holstein dairy cows normally have black-and-white coats. Sometimes, calves with a recessive red-and-white coat are born. A dairy farmer bought a prize-winning black-and-white Holstein bull (male) and mated it to one of his black-and-white cows. To his dismay, the cow produced a red-and-white calf (baby).
a)Provide correct notation for the dominant and recessive alleles?
b)What is the genotype of the bull?
c) What would the phenotyples of the offspring be if the above bull was mated to a red-and-white cow?
In sheep, coat color is influenced by two genes. Gene A influences pigment production, while gene B produces black or brown pigment. If two heterozygous white sheep resulted in 12 white sheep, 3 black sheep, and 1 brown sheep, which genotype(s) of the white sheep explain this data?
A) The white sheep could be A-B- or aaB-.
B) The white sheep could be A_B_ or aabb.
C) The white sheep could be A_B_ or A_bb.
D) The white sheep must all be aabb.
E) The white sheep must all be A_B_.
Chapter 4 Solutions
Concepts of Genetics (11th Edition)
Ch. 4 - In the guinea pig, one locus involved in the...Ch. 4 - In some plants a red flower pigment, cyanidin, is...Ch. 4 - Below are three pedigrees. For each trait,...Ch. 4 - Prob. 1CSCh. 4 - Prob. 2CSCh. 4 - Prob. 3CSCh. 4 - HOW DO WE KNOW? In this chapter, we focused on...Ch. 4 - CONCEPT QUESTION Review the Chapter Concepts list...Ch. 4 - In shorthorn cattle, coat color may be red, white,...Ch. 4 - In foxes, two alleles of a single gene, P and p,...
Ch. 4 - In mice, a short-tailed mutant was discovered....Ch. 4 - List all possible genotypes for the A, B, AB, and...Ch. 4 - With regard to the ABO blood types in humans,...Ch. 4 - In a disputed parentage case, the child is blood...Ch. 4 - The A and B antigens in humans may be found in...Ch. 4 - In chickens, a condition referred to as creeper...Ch. 4 - In rabbits, a series of multiple alleles controls...Ch. 4 - Three gene pairs located on separate autosomes...Ch. 4 - As in Problem 12, flower color may be red, white,...Ch. 4 - Horses can be cremello (a light cream color),...Ch. 4 - With reference to the eye color phenotypes...Ch. 4 - Pigment in mouse fur is only produced when the C...Ch. 4 - In rats, the following genotypes of two...Ch. 4 - Given the inheritance pattern of coat color in...Ch. 4 - In a species of the cat family, eye color can be...Ch. 4 - In a plant, a tall variety was crossed with a...Ch. 4 - In a unique species of plants, flowers may be...Ch. 4 - Five human matings (15), identified by both...Ch. 4 - A husband and wife have normal vision, although...Ch. 4 - In humans, the ABO blood type is under the control...Ch. 4 - In Drosophila, an X-linked recessive mutation,...Ch. 4 - Another recessive mutation in Drosophila, ebony...Ch. 4 - In Drosophila, the X-linked recessive mutation...Ch. 4 - While vermilion is X-linked in Drosophila and...Ch. 4 - In a cross in Drosophila involving the X-linked...Ch. 4 - Consider the three pedigrees below, all involving...Ch. 4 - In goats, the development of the beard is due to a...Ch. 4 - Predict the F1 and F2 results of crossing a male...Ch. 4 - Two mothers give birth to sons at the same time at...Ch. 4 - Discuss the topic of phenotypic expression and the...Ch. 4 - Prob. 35PDQCh. 4 - Labrador retrievers may be black, brown...Ch. 4 - A true-breeding purple-leafed plant isolated from...Ch. 4 - In Dexter and Kerry cattle, animals may be polled...Ch. 4 - A geneticist from an alien planet that prohibits...Ch. 4 - The following pedigree is characteristic of an...Ch. 4 - Students taking a genetics exam were expected to...Ch. 4 - In four oclock plants, many flower colors are...Ch. 4 - Proto-oncogenes stimulate cells to progress...Ch. 4 - Below is a partial pedigree of hemophilia in the...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Jellyfish Lake, located on the Pacific island of Palau, is home to millions of jellyfish. Many years ago, sea l...
BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
a. What three lineages of lobe-fins survive today? b. Go back to the phylogenetic tree in Interactive Question ...
Study Guide for Campbell Biology
2. A gene is a segment of DNA that has the information to produce a functional product. The functional product ...
Genetics: Analysis and Principles
Knowledge Booster
Learn more about
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
- Two alleles of gene C control hair color in horses: C¹and C². Horses homozygous for allele C¹ are red, heterozygotes are yellow, and C² homozygotes are cream. In the offspring of matings between heterozygotes, what phenotypic ratio is expected? A) 2 yellow: 1 red B) 3 red: 1 cream C) 1 red: 2 yellow: 1 cream D) all red E) 9 red: 3 yellow: 4 creamarrow_forwardIn dogs, black fur (B) is dominant to brown fur (b). In a genetic cross of two dogs that are heterozygous for the color of their fur, what is the genotype and the phenotypic ratio of the offspring? A)F: Bb, Bb, bb; ratio 2;1B)F: BB, bb; ratio 1:1C)F: Bb, bb, bb; ratio 1:1D)F: BB, Bb, Bb, bb; ratio 3:1E) F: BB, Bb; no ratioarrow_forwardIn some cats, the gene for tail length shows incomplete dominance. When a cat with a long tail is bred to a cat with no tail, the resulting offspring have short tails. For each of the following, predict the types of offspring that would result: a) A long tail cat bred to a cat with no tail b) A long tail cat bred to a short tail cat c) Two short tail catsarrow_forward
- 2) When chickens with splashed white feathers are mated with black feathered birds, all the offspring are slate blue. When the slate blue chickens are mated amongst themselves, they produce splashed white, slate blue and black feathered chicks in the ration of 1:2:1. a) how are these traits inherited? b)Suggest appropriate symbols for the alleles involved. c) Using those symbols, give the genotypes that correspond to each of the 3 phenotypesarrow_forwardIn a newly discovered species of Giant Pacific Octopus, long tentacles (L) are dominant to short tentacles (l), strong suction cups (S) are dominant to weak suction cups (s), and brown body color (B) is dominant to red body color (b). A trihybrid test cross was performed between male octopuses that were heterozygous for all three genes, and female octopuses that were homozygous recessive. (You may assume that the dominant alleles exhibit complete dominance.) The results of this cross are shown in the table attached Please complete the table and answer the following questions: a) Are these genes linked? Explain why you think these genes are linked or unlinked? b) What is the genotype of each of the two parents that produced the offspring shown in the data table? Please indicate the linkage phase as you write the genotype of each parent. (Please write the genotypes in the format: xyz/xyz.) Genotype of male parent octopus: Genotype of female parent octopus:arrow_forwardIn a newly discovered species of Giant Pacific Octopus, long tentacles (L) are dominant to short tentacles (l), strong suction cups (S) are dominant to weak suction cups (s), and brown body color (B) is dominant to red body color (b). A trihybrid test cross was performed between male octopuses that were heterozygous for all three genes, and female octopuses that were homozygous recessive. (You may assume that the dominant alleles exhibit complete dominance.) The results of this cross are shown in the table attached a) If the three genes are linked, draw a diagram that shows the correct orderof the three genes on the chromosome (with respect to which gene is in the middle) and also LABEL Region I and Region II on your diagram. b) Calculate the map distances between each of the three genes. Please show the formula used for each calculation, and show ALL calculations. Define which region is your region I and which region is your region II. (For example, please state the region I is…arrow_forward
- In a newly discovered species of Giant Pacific Octopus, long tentacles (L) are dominant to short tentacles (l), strong suction cups (S) are dominant to weak suction cups (s), and brown body color (B) is dominant to red body color (b). A trihybrid test cross was performed between male octopuses that were heterozygous for all three genes, and female octopuses that were homozygous recessive. (You may assume that the dominant alleles exhibit complete dominance.) The results of this cross are shown in the table attached Please complete the tabel and answer the followig questions: a) If the three genes are linked, draw a diagram that shows the correct orderof the three genes on the chromosome (with respect to which gene is in the middle) and also LABEL Region I and Region II on your diagram. b) Calculate the map distances between each of the three genes. Please show the formula used for each calculation, and show ALL calculations. Define which region is your region I and which region is…arrow_forwardIn a newly discovered species of Giant Pacific Octopus, long tentacles (L) are dominant to short tentacles (l), strong suction cups (S) are dominant to weak suction cups (s), and brown body color (B) is dominant to red body color (b). A trihybrid test cross was performed between male octopuses that were heterozygous for all three genes, and female octopuses that were homozygous recessive. (You may assume that the dominant alleles exhibit complete dominance.) The results of this cross are shown in the table attached Question: A second trihybrid test cross was performed involving female octopus that were heterozygous for all three genes and male octopus that were homozygous recessive.The results of this second cross are shown in the table below. Offer a plausible explanation for the differences observed between the results of trihybrid test cross #1 vs. the results of this second test cross. Phenotype Number observed Long, weak, brown 495 Short, strong, red 501arrow_forwardIn the mouse, gene A is epistatic to gene B. Dominant allele A allows pigmentation to be transported into fur; recessive allele a prevents transport of pigment, resulting in albino fur. Dominant allele B gives agouti fur color; recessive allele b gives black fur color. What phenotype would you expect to see in a mouse with a genotype of aaBb? a) Agouti fur O b) Albino fur Oc) Black fur O d) Black and white furarrow_forward
- As seen in the photo, Labradors come in three colors-- black, brown and yellow. What is the genetic basis for these different coat colors? One gene produces melanin, a pigment which is deposited in the dog's fur and makes the color dark. With this gene, allele B (black) is dominant to allele b. Only in the case of a recessive homozygote (bb) will the dog's phenotype be brown. The regulatory gene is separate from the melanin gene but it acts as a switch, either turning the melanin gene on or turning it off. Allele E is dominant and allows for the melanin to be deposited in the dog's fur ("on" switch), but if the switch gene is a recessive homozygote, the melanin is blocked ("off" switch) and a yellow dog is the result! 1. Two other Labradors mate and produce puppies. Their genotypes are Bbee and BbEe. What color are each parent and what are the phenotypic rations of their offspring in the F1 Generation? Show your work with a Punnett square.arrow_forwardASAP PLEASE In Talons, the feral style (S) is dominant over the gladiator style (s), and green eyes (G) are dominant over yellow (g). If a Talon that is heterozygous for both traits is crossed with a Talon that is homozygous recessive for both traits, what is the predicted genotype of the offspring? A)SsGg and Ssgg B)SsGg only C)SsGg, ssgg, ssGg, Ssgg D)ssGg and ssgg onlyarrow_forwardIn Mexican hairless dogs, a dominant allele codes for hairlessness. However, inheriting two dominant alleles is lethal; the fetus dies before birth. Suppose a breeder mates two dogs that are heterozygous for the hair allele. What are the predicted genotype and phenotype ratios of the puppies that are born? A) Phenotype Ratio 1:2:1 Genotype Ratio: 1:2:1 B) Phenotype Ratio 2:1 Genotype Ratio: 0:2:1 C) Phenotype Ratio 3:1 Genotype Ratio: 1:2:1 D) Phenotype Ratio 1:2:1 Genotype Ratio: 3:1arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSON
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Anatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education
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