Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Textbook Question
Chapter 11, Problem 3TYU
The type of cross described in question 2 is (a) an F2 cross (b) a dihybrid cross (c) a test cross (d) a two-point test cross (e) none of the preceding
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Students have asked these similar questions
A 16-square Punnett is time-consuming to draw out. Dr. Thompson can easily solve this problem by decomposing her dihybrid crosses into separate monohybrid Punnett squares, which would also be quicker than using a forked line diagram. If so, how many individual monohybrid Punnett squares will she need to draw?
a)
Four Punnett squares.
b)
Two Punnet squares.
c)
One Punnett square.
d)
Sixteen Punnett squares since there are 16 possible outcomes.
No need to explain
1.) The phenomenon in which gene present on the same chromosome remain together as gametes are produced is knows as
A.) non-disjunction
B.) cross-over
C.) synapsis
D.) linkage
2.) Queen Victoria was a carrier of hemophilia, but there is no record of the disease in any of her ancestors. It is reasonable to suggest that she became a carrier of hemophilia as a result of
A.) recombination
B.) a mutation
C.) inbreeding
D.) crossing over
3.) How many primary spermatocytes and primary Oo Yates are required to produced 100 sperm and 100 eggs?
A.) 25 primary spermatocytes and 25 primary oocytes
B.) 100 primary spermatocytes and 100 primary oocytes
C.) 25 primary spermatocytes and 100 primary oocytes
D.) 100 primary spermatocytes and 25 primary oocytes
8. The diagram below shows a pedigree of cystic fibrosis (CF), in which the black colour indicates the
presence of CF. What is the probability that the individual labelled X is a carrier of CF?
a) 100%
b) 50%
c) 25%
d) 0%
Chapter 11 Solutions
Biology (MindTap Course List)
Ch. 11.1 - Define the terms phenotype, genotype, locus,...Ch. 11.1 - Describe Mendels principles of segregation and...Ch. 11.1 - Distinguish among monohybrid, dihybrid, and test...Ch. 11.1 - Explain Mendels principles of segregation and...Ch. 11.1 - What is the maximum number of different alleles...Ch. 11.1 - Can Mendels principle of segregation be...Ch. 11.1 - Prob. 3CCh. 11.2 - PREDICT Use the rules of probability to answer the...Ch. 11.2 - In answering the previous question, did you use...Ch. 11.3 - Define linkage and relate it to specific events in...
Ch. 11.3 - Show how data from a two-point test cross can be...Ch. 11.3 - Discuss the genetic determination of sex and the...Ch. 11.3 - What ratio of genotypes to phenotypes is observed...Ch. 11.3 - Prob. 2CCh. 11.3 - CONNECT Two loci exhibit 5% recombination between...Ch. 11.3 - Which chromosome determines the male sex in humans...Ch. 11.3 - Prob. 5CCh. 11.4 - Explain some of the ways genes may interact to...Ch. 11.4 - Distinguish among incomplete dominance,...Ch. 11.4 - Prob. 11LOCh. 11.4 - Prob. 1CCh. 11.4 - What is the difference between multiple alleles...Ch. 11.4 - Prob. 3CCh. 11.4 - Prob. 4CCh. 11 - One of the autosomal loci controlling eye color in...Ch. 11 - The F1 flies described in question 1 were mated...Ch. 11 - The type of cross described in question 2 is (a)...Ch. 11 - Individuals of genotype AaBb were crossed with...Ch. 11 - Assume that the ratio of females to males is 1:1....Ch. 11 - Redgreen color blindness is an X-linked recessive...Ch. 11 - When two long-winged flies were mated, the...Ch. 11 - The long hair of Persian cats is recessive to the...Ch. 11 - Mr. and Mrs. Smith are concerned because their own...Ch. 11 - A walnut comb rooster is mated to three hens. Hen...Ch. 11 - Individuals of genotype AaBb were mated to...Ch. 11 - Genes A and B are 6 map units apart, and A and C...Ch. 11 - VISUALIZE Sketch a series of diagrams showing each...Ch. 11 - Can you always ascertain an organisms genotype for...Ch. 11 - CONNECT Compare the mechanisms of genetic...Ch. 11 - EVOLUTION LINK Darwins theory of evolution by...Ch. 11 - INTERPRET DATA Using the graph in Figure 11-20,...
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- 2) What is the phenotypic ratio of a dihybrid cross? a) 3:1 b) 1:2:1 c) 9:3:3:1 d) 1:1arrow_forwardIf a Mother's genotype is IAi and her Daughter's genotype is ii and the mother claims a man who is type B as the father... a) Is that possible? Explain. b) The accused man can prove that both of his parents are type AB. Is it possible for him to be type B? If so, what is his genotype? Explain. d) Does the answer in part c change the answer in part b? Explain.arrow_forwardA) Two linked genes, (A) and (B), are separated by 18 cM. A XY individual with genotype Aa Bb (trans) mates with a XX individual who is aa bb. What is the probability that their first two children will both be aabb? a) 0.168 b) 0.0081 c) 0.032 d) 0.062 e) none of the above B) Two linked genes, (A) and (B), are separated by 18 cM. A XY individual with genotype Aa Bb (their mother was aabb) mates with a XX individual who was aa bb. What is the probability their first child will be Aa Bb? a) 0.18 b) 0.41 c) 0.09 d) 0.25 e) 0.50arrow_forward
- 3. Hemophilia is a recessive sex-linked disease carried on the X chromosome in humans. Cross a woman carrier for Hemophilia to a hemophiliac man. Show your solution using Punnett Square. a.) What % of the offspring will be carrier females? b.) What % will be normal males? c.) What % will be normal females (those who do not have the disease)? d.) What % will be hemophiliac females? e.) What is the genotype of the carrier female?arrow_forwardEnsure answers are clearly labelled a) & b). a) Consider the following pedigree. The solid symbols represent affected individuals. Which of the following is / are possible genotypes for IV-2 with respect to this disease? Please type 1 - 4, and indicate yes or no only for each I II III 1 IV 3 V 1 1. ХАха 2. хаха 3. Aa 4. A1Α2 b) Genes A, B and C are on the same chromosome linked in cis (coupling) conformation. A is 23 cM from B, and B is 17 cM from C. The distance between A and C is 40 cM. The coefficient of coincidence is 0.75 for a trihybrid test cross. How many individuals with the genotype aaBbcc do you expect to see among the offspring of the cross if 1000 offspring are obtained? Please show your calculations and round your answer off to the nearest whole number.arrow_forward10 one is incorrect?arrow_forward
- Two normal-looking fruit flies were crossed and, in their progeny, there were 202 females and 98 males. (i) What is unusual about this result? (ii) Provide a genetic explanation for this anomaly. (iii) Provide a test of your hypothesis.arrow_forwardIf a test cross of a trihybrid produced the following outcome, how far apart are genes C and F? phenotype observed # CFB 125 cfb 121 CFb 120 cFb 119 Cfb 128 cfB 127 CfB 124 cFb 123 a) 123 cM! b) I don't know how to do these problems! c) It is impossible to tell since the genes are linked! d)It is impossible to tell since the genes are not linked!arrow_forward3) AA AA Consider the genetic cross for absent-mindedness, which is a dominant trait. All of the offspring from this cross will be absent-minded. If two parents that are absent-minded have offspring that are not, what MUST be the genotypes of the parents? A) aa X aa B) Aa X Aa Aa X aa D) Aa X AA In sexual reproduction, offspring are genetically different from the parents. This is becausearrow_forward
- A man of blood group A is being sued by a woman of blood group B for paternity. The women’s child is blood group O. A) Is this man the father of this child? Explain. B) If this man actually is the father of this child, specify the genotypes of both parents. C.) If it was impossible for this group A man to be the father of a type O child, regardless of the mother’s genotype, specify his genotype. D.) If a man was blood group AB, could he be the father of a group O child? Why/why not?arrow_forwardNow assume that the pedigree shown in question 1 shows the inheritance of a rare genetic disease. a) The disease is most likely autosomal dominant b) The disease is most likely autosomal recessive c) The disease is equally likely to be either autosomal dominant or autosomal recessive, but cannot be x-linked d) Cannot be determined from the information givenarrow_forward3. The recessive sex-linked gene (h) prolongs the blood-clotting time, resulting in the genetically inherited disease called hemophilia. From the information in the pedigree chart (right), answer the following questions: Hemophilia in humans (a) If 112 marries a normal man, what is the probability of her first child being a hemophiliac? 2 (b) Suppose her first child is actually a hemophiliac. What is the chance that her second child will be a boy with hemophilia? 2 (c) If I14 has children with a hemophiliac man, what is the probability that her first child will be phenotypically normal? (d) If the mother of 12 was phenotypically normal, what phenotype was her father? 4. The phenotypic expression of a dominant gene in Ayrshire cattle is a notch in the tips of the ears. In the pedigree chart on the right, notched animals are represented by the solid symbols. Ear notches in Ayrshire cattle Determine the probability of notched offspring being produced from the following matings: 1 2 (a)…arrow_forward
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