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, Problem 7CONQ
A seed dealer wants to sell four-o’clock seeds that will produce only a single color of flowers (red, white, or pink). Explain how this should be done.
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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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- Mendel's Traits and Symbols for Pea Plants Symbol Symbol Traits Seed Shape Seed Color Seed Coat Color Pod Shape Dominant Allele Recessive Allele Round Yellow Colored Smooth Wrinkled Green White Constricted Yellow Pod Color Green Stem Height Tall Short Terminal Flower Position Axial Aarrow_forwardF2 Cross: Tall, White, Axial x Dwarf, Violet, Terminal DdwwAA x ddWWaa Character: Stem height, Flower color & position Use fork-line method to check the possible offspring. Show and interpret all the possible genotypes and phenotypes of the offsprings.arrow_forwardMatch the flower parts to the appropriate letter. A B с D C A B Ꭰ [Choose ] [Choose ] [Choose ] [Choose ] <arrow_forward
- Cross two homozygous plants (RRYY x rryy) R = round seeds, r = wrinkled seeds Y = yellow seeds, y = green seeds. What percent will have Round and Yellow seeds? show your solution using punnet squarearrow_forwardSmooth seed shape is dominant to wrinkled. The F2 generation is as follows: 3/4 smooth: 1/4 wrinkled. What is the expected F1 genotypic ratio?arrow_forwardPlease write your complete solution (paper). What color of gumamela flower should be crossed to produce all pink flowers?arrow_forward
- A all (TT) plant is crossed with a short (tt) plant. What percentage of the offspring will be tall?____arrow_forwardPlease write your complete solution (paper). What color of gumamela flower should be crossed to produce pink and white of equal ratio?arrow_forwardYou are responsible for landscaping a very large urban park. You choose a popular flowering garden plant, the hydrangea, to plant throughout the park. The nursery you purchased the plants from said that the flowers should be pink. After a few months, though, you find—to your surprise—that the plants throughout the park display a variety of flower colors ranging from purple and blue, to pink and white, and finally, to all shades in between. After a suggestion from a friend, you test the soil where each plant was planted, and you determine that the color of the flowers seems to correlate with the acidity of the soil in which the plant was placed. Choose the answer that best fits the blank. The parentheses after the blanks are the choices. Since the flowers have shown such a broad range of colors, with no clear distinction between one color type and the next, this is an example of _________ (continuous variation, codominance, pleiotropy). The acidity of the soil is an example of…arrow_forward
- Bolting is when a plant starts to spend its energy on producing flowers. Initial bolting time is figured by the number of days from germination to bolting. Rosette area is figured by the average rosette area of the plant at the time of bolting. Researchers created strains of A. thaliana to have varying somatic ploidy levels to study the resulting phenotypes. The graphs show how initial bolting time and rosette area relate to the number of chromosomes in each strain’s somatic cells. Which of the following best describes how a change in genotype affects the phenotype of A. thaliana? The largest average change in both phenotypes occurred from the 2n to the 4n strain. The largest average change in both phenotypes occurred from the 4n to the 6n strain. A lesser number of chromosomes results in plants with a later initial bolting time. A greater number of chromosomes results in plants that have larger rosettes areas.arrow_forwardYou are planting a cherry orchard with two rows of female fruiting trees. Below is a diagram of their location, and three empty plots where you could plant male pollen trees. Left Plot S₁S₁ Left S₁ S₂ Middle Middle Plot S₁S3 Middle S₂S3 S₂S3 S₂S3 Based on the S genotype of the above female trees, where would you place male pollen trees with the following genotypes to maximise fertilisation? S₂S₂ Middle S₂S3 Right to S3 S3 Middle = S₁S₁ S₁S₁ S₁S₁ Right Plotarrow_forwardGiven : The given plant is triploid. Symbol For purple = P For yellow seed = Y For round seed = R Answer 1. The Probability of PpYyRr = 8/64 = 1/8 2. The Probability of PPyyRr = 4/64 = 1/16 3. Probability of at least exhibiting wrinkled seeds = 32/64 = 1/2 4. Probability of at least exhibiting purple flowers = 48/64 = 6/8 = 3/4 QUESTION: Answer the remaining question (5, 6, 7)arrow_forward
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