Essentials Of Genetics (9th Global Edition)
9th Edition
ISBN: 9780134143637
Author: William S. Klug, Michael R. Cummings
Publisher: Pearson Global Edition
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Chapter 4, Problem 4PDQ
With regard to the ABO blood types in humans, determine the genotypes of the male parent and female parent:
Male parent: blood type B whose mother was type O
Female parent: blood type A whose father was type B
Predict the blood types of the offspring that this couple may have and the expected ratio of each.
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With regard to the ABO blood types in humans, determine thegenotypes of the male parent and female parent:
Male parent: blood type B whose mother was type OFemale parent: blood type A whose father was type B
Predict the blood types of the offspring that this couple may have and the expected ratio of each.
A survey was taken to determine the blood types of children from marriages in which the wife had the blood group AB and the husband had blood type A but one of his parents is type O. The survey resulted in 250 type A, 90 type B, and 110 type AB children. Is the deviation from the expected significant?
Consider the MN blood system in humans. This blood system consists of only two alleles, M and N, and they are codominant to each other. Three genotypes are possible, and these genotypes can be easily identified through simple blood typing procedures, including the heterozygous MN due to the codominant mode of inheritance. Consider the following data:
Phenotype
Genotype
Number of individuals
M
MM
89
MN
MN
162
N
NN
79
1. How many alleles exist in this population?
2. What is the genotypic frequency of the M blood type in the population?
3. What is the allelic frequency of M?
4. What is the allelic frequency of N?
5. What is the genotypic frequency of MN?
Write your answers directly. You do not need to show your solution.
Chapter 4 Solutions
Essentials Of Genetics (9th Global Edition)
Ch. 4 - CASE STUDY | But he isn't deaf Researching their...Ch. 4 -
CASE STUDY | But he isn’t deaf
Researching...Ch. 4 - CASE STUDY | But he isn't deaf Researching their...Ch. 4 - HOW DO WE KNOW? In this chapter, we focused on...Ch. 4 - Review the Chapter Concepts list on page 53. These...Ch. 4 - In Shorthorn cattle, coat color may be red, white,...Ch. 4 -
4. With regard to the ABO blood types in humans,...Ch. 4 - In foxes, two alleles of a single gene, P and p,...Ch. 4 - Three gene pairs located on separate autosomes...Ch. 4 - As in the plants of Problem 6, color may be red,...
Ch. 4 -
8. The following genotypes of two independently...Ch. 4 - Given the inheritance pattern of coat color in...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 goals, development of the beard is due to a...Ch. 4 -
13. In cats, orange coal color is determined by...Ch. 4 - In Drosophila, an X-linked recessive mutation,...Ch. 4 - Another recessive mutation in Drosophila, ebony...Ch. 4 - While vermilion is X-linked in Drosophila and...Ch. 4 - In pigs, coat color may be sandy, red, or white. A...Ch. 4 - A geneticist from an alien planet that prohibits...Ch. 4 - In another cross, the frog geneticist from Problem...Ch. 4 - In cattle, coats may be solid white, solid black,...Ch. 4 - Consider the following three pedigrees, all...Ch. 4 - Labrador retrievers may be black, brown, or golden...Ch. 4 - Three autosomal recessive mutations in Drosophila,...Ch. 4 -
24. Horses can be cremello (a light cream...Ch. 4 - Pigment in the mouse is produced only when the C...Ch. 4 - Five human matings numbered 1–5 are shown in the...Ch. 4 - Two mothers give birth to sons at the same time at...Ch. 4 - In Dexter and Kerry cattle, animals may be polled...Ch. 4 - What genetic criteria distinguish a case of...Ch. 4 -
30. The specification of the anterior-posterior...Ch. 4 - The maternal-effect mutation bicoid(bcd)is...Ch. 4 -
32. Students taking a genetics exam were...Ch. 4 - In four o'clock plants, many flower colors are...Ch. 4 - Prob. 34PDQ
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- In the Bombay phenotype, a homozygous recessive individual hh appears to have blood type O because she is unable to produce the H substance, which is required to make the A or B blood-type antigens. HH or Hh individuals normally produce H substance. What is the probability that a child will test as type AB blood from parents with the following genotypes? IAIO Hh X IBIA hh 3/16 1/8 1/4 3/4 1/2arrow_forwardA couple consulted a genetic counselor and they found out the following: Basha: A blood type, blue eye color, normal skin condition, carrier of cystic fibrosis gene, and carrier of hemophilia gene Popoy: B blood type, has brown eye color, normal skin condition, carrier of cystic fibrosis gene and negative to hemophilia. Clues for the table: • Blood Type: The probability that they’ll have an offspring with blood type the same as Popoy is 25% only • Eye Color: The probability that they’ll have an offspring with brown eye color is 75%. • Skin condition: The probability that their offspring will be an albino is 25% What is the probability that the offspring will have/ be: A. a girl with all the same phenotype as her mother. B. 2 girls with neither the blood type of the parents. C. 2 boys with normal skin color and carrier of cystic fibrosis gene; 1 girl with normal skin color and negative to cystic fibrosis. D. 2 girls carrier of both cystic fibrosis gene and hemophilia, a boy † positive…arrow_forwardHuman blood type is regulated by 3 alleles (A,B,O). Four blood types are possible: A, B, AB, and O. A woman who has blood type A has a son with blood type O. She sues Man #1, whom she claims to be the father, for child support. Man #1 suspects he is not the only paternal candidate and requests blood-typing for Man #2. Based on the blood-typing results in the table below who could be the father? Man #1: Type B Man #2: Type O Man #1 only Man #2 only Man #1 or Man #2 Impossible for either, since the Mother has blood type Aarrow_forward
- In the Bombay phenotype, a homozygous recessive individual hh appears to have blood type O because she is unable to produce the H substance, which is required to make the A or B blood-type antigens. HH or Hh individuals normally produce H substance. What is the probability that a child will test as type A blood from parents with the following genotypes? IAIO Hh X IBIO Hh 3/16 7/16 1/2 1/4 3/4arrow_forwardIn the Bombay phenotype, a homozygous recessive individual hh appears to have blood type O because she is unable to produce the H substance, which is required to make the A or B blood-type antigens. HH or Hh individuals normally produce H substance. What is the probability that a child will test as type AB blood from parents with the following genotypes? IAIO Hh X IBIO Hh 1/4 3/4 3/16 1/2 7/16arrow_forwardUsing punnett square, determine all the possible phenotype of the offspring having parents with the following blood types. Wife = Type A Husband = Type O O only O A and O O A and Barrow_forward
- Please give the expected genotypic and phenotypic ratio of offspring from a cross between a person with Type AB blood and a person with Type O blood.arrow_forwardPlease draw a punnett square for thisarrow_forwardWhat is the probability of a child having type AB blood if one of the parents is heterozygous for A blood (Ai) and the other is heterozygous for B blood (Bi)? What other genotypes are possible for children of these parents?arrow_forward
- The following is a summary of the possible sickle-cell genotypes and phenotypes: AA - cojmpletely normal AS - sickle-cell trait (this person has a combination of normal hemoglobin and the abnormal, sickled form of hemoglobin) SS - sickle-cell anemia (all abnormal hemoglobin) Fill in the punnett square and answer the question: If both parents and heterozygous for sickle-cell disease, what are the possible genotypes and phenotypes for their children?arrow_forwardConsider two blood polymorphisms that humans have in addition to the ABO system. Two alleles LM and LN determine the M, N, and MN blood groups. The dominant allele R of a different gene causes a person to have the Rh+ (rhesus positive) phenotype, whereas the homozygote for r is Rh− (rhesus negative). Two men took a paternity dispute to court, each claiming three children to be his own. The blood groups of the men, the children, and their mother were as follows:From this evidence, can the paternity of the children be established?arrow_forwardSickle cell anemia is a genetically inherited autosomal recessive trait in which results in a condition that there are not enough healthy red blood cells to carry oxygen throughout the body due to the production of red blood cells that are sickle shaped. The frequency of the sickle cell condition is as high as 10% in Central Africa compared to 0.5% in the United States. Calculate the frequency of the normal and carries of the sickle cell condition.arrow_forward
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