Genetics: Analysis and Principles
6th Edition
ISBN: 9781259616020
Author: Robert J. Brooker Professor Dr.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 4.7, Problem 1COMQ
The Manx
a. All Manx
b. All normal
c. 1 normal: 1 Manx
d. 1 normal: 2 Manx
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A woman with blood type AB marries a man with blood type B. They have a child of blood type A. What is the probability that their next child will have blood type o?
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In fruit flies, grey body colour (G) is dominant over black body colour (g). A cross between a heterozygous grey fruit fly and a black fruit fly can be represented by
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b. GgGg
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A human female "carrier" who is heterozygous for the recessive, sex-linked
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А. 1/4
В. 1/2
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Chapter 4 Solutions
Genetics: Analysis and Principles
Ch. 4.1 - 1. Which of the following statements is true?
a....Ch. 4.2 - 1. Which of the following is not an example of a...Ch. 4.2 - Prob. 2COMQCh. 4.2 - 3. Polydactyly is a condition in which a person...Ch. 4.3 - The outcome of an individuals traits is controlled...Ch. 4.4 - Prob. 1COMQCh. 4.4 - Prob. 2COMQCh. 4.5 - Prob. 1COMQCh. 4.5 - Hemophilia is a blood-clotting disorder in humans...Ch. 4.6 - Prob. 1COMQ
Ch. 4.7 - 1. The Manx phenotype in cats is caused by a...Ch. 4.8 - Which of the following is a possible explanation...Ch. 4.9 - 1. Two different strains of sweet peas are...Ch. 4.9 - If the F1 offspring from question 1 are allowed to...Ch. 4 - 1. Describe the differences among dominance,...Ch. 4 - Discuss the differences among sex-influenced,...Ch. 4 - 3. What is meant by a gene interaction? How can a...Ch. 4 - Lets suppose a recessive allele encodes a...Ch. 4 - 5. A nectarine is a peach without the fuzz. The...Ch. 4 - 6. An allele in Drosophila produces a star-eye...Ch. 4 - A seed dealer wants to sell four-oclock seeds that...Ch. 4 - 8. The blood serum from one individual (let’s call...Ch. 4 - 9. Which blood type phenotypes (A, B, AB, and/or...Ch. 4 - A woman with type B blood has a child with type O...Ch. 4 - A type A woman is the daughter of a type O father...Ch. 4 - In Shorthorn cattle, coat color is controlled by a...Ch. 4 - In chickens, the Leghorn variety has white...Ch. 4 - Propose the most likely mode of inheritance...Ch. 4 - 15. A human disease known as vitamin D-resistant...Ch. 4 - 16. Hemophilia is an X-linked recessive trait in...Ch. 4 - 17. Incontinentia pigmenti, a rare, X-linked...Ch. 4 - 18. Scurs in cattle is a sex-influenced trait. A...Ch. 4 - In rabbits, the color of body fat is controlled by...Ch. 4 - Prob. 20CONQCh. 4 - 21. The trait of feathering in fowls is a...Ch. 4 - Based on the pedigree shown here for a trait...Ch. 4 - 23. The pedigree shown here involves a trait...Ch. 4 - Lets suppose you have pedigree data from thousands...Ch. 4 - Prob. 25CONQCh. 4 - 26. In humans, a very rare dominant allele that...Ch. 4 - 27. A sex-influenced trait in humans affects the...Ch. 4 - Three coat-color patterns that occur in some...Ch. 4 - Prob. 1EQCh. 4 - 2. In chickens, some varieties have feathered...Ch. 4 - 3. In sheep, the formation of horns is a...Ch. 4 - Prob. 4EQCh. 4 - In the clover butterfly, males are always yellow,...Ch. 4 - The Mic2 gene in humans is present on both the X...Ch. 4 - 7. Duroc Jersey pigs are typically red, but a...Ch. 4 - 8. As shown in Figure 4.17, coat color in rodents...Ch. 4 - 9. Summer squash exist in long, spherical, or disk...Ch. 4 - In a species of plant, two genes control flower...Ch. 4 - 11. Red eyes is the wild-type phenotype in...Ch. 4 - 12. As mentioned in Experimental Question E11, red...Ch. 4 - Lets suppose you were looking through a vial of...Ch. 4 - 14. When examining a human pedigree, what features...Ch. 4 - Lets suppose a gene exists as a functional...Ch. 4 - In oats, the color of the chaff is determined by a...
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- In humans, hemophilia is an x- linked recessive condition characterized by the inability of blood to clot normally. A woman who is a carrier for hemophilia marries a man who has hemophilia. What proportion of their male children will have hemophilia. A. 0%b. 25%C.50%d. 75%e. 100%arrow_forwardThe mother with a heterozygous type A blood gave birth to a child, the father is homozygous type B. Is there any chance that the child will be type 0? * A. Yes, there is 75% chance. B. No chance C. Yes, there is 50% chance. D. Yes, there is a 25% chancearrow_forwardFor an X-linked recessive allele, what proportion of female offspring will be carriers in the cross of an affected father and a noncarrying mother? a.50 percent b.0 percent c.100 percentarrow_forward
- A woman with blood type B negative has a daughter who is type O positive and a son who is type A negative. Rh positive is a trait that shows simple dominance over Rh negative and is designated by the alleles R and r, respectively. Which of the following is a possible phenotype for the father? a. O negative b. A negative c. A positive d. B positive e. AB negativearrow_forwardA cross occurs between a black homozygous mouse and a white homozygous mouse. They produce gray offspring. What type of dominance is reflected in the scenario above? a. codominance b. incomplete dominance c. complete dominance d. blending of genesarrow_forwardA. heterozygous blue-eyed man is marrying a homozygous brown-ayed woman. Determine the ratio of the following from the offspring. B. Genotype C. Phenotypearrow_forward
- A male affected with an X-linked dominant trait will have what proportion of offspring affected with the trait? a. 1/2 sons and 1/2 daughtersb. All sons and no daughtersc. All daughters and no sonsd. 3/4 daughters and 1/4 sonsarrow_forwardIn humans, hemophilia is an X-linked recessive condition characterized by the inability of blood to clot normally. A woman who is a carrier for hemophilia marries a man who has hemophilia. What are the genotypes of the woman and man, respectively? a. xH+xH+, xH+y b. xH+xH xH+y c. xH+xH xHy Od. XHXH, XH+y O e. xHxH xHyarrow_forwardHemophilia, color-blindness, and muscular dystrophy were all examples of: a. Dominance b. Codominance c. Incomplete dominance O d. X-linked traitsarrow_forward
- The snapdragon flower in Tennessee and Alabama are both white. When these two strains of snapdragon were crossed, the resulting F1 produces purple-color flower. When the F1 was self-crossed, the F2 progeny were 540 purple and 420 white. 16. What kind of inheritance pattern is this? A. recessive epistasis B. complete dominance C. dominant epistasis D. codominance E. complementationarrow_forwardA cross occurs between a black homozygous mouse and a white homozygous mouse. They produce gray offspring. Respond to the question based upon this scenario. What are the percentage probabilities for the genotype and phenotype of the offspring? a. 100% black; 100% Bb b. 100% gray; 100% bb c. 100% white; 75% Bb, 25% bb d. 100% gray; 100% Bbarrow_forwardA cross occurs between a chicken with white feathers and a chicken with black feathers. This results with offspring with some black feathers and some white feathers. What type of inheritance is this? a. incomplete dominance b. complete dominance c. codominance d. blended dominancearrow_forward
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