Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 12, Problem 2TYK
In peas, the allele Le produces tall plants and the allele le produces dwarf plants. The Le allele is dominant to le. If a tall plant is crossed with a dwarf, the offspring are distributed about equally between tall and dwarf plants. What are the genotypes of the parents?
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Chapter 12 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 12.1 - Two pairs of traits are segregating in a cross....Ch. 12.1 - If, instead, the four phenotypes in question 1...Ch. 12.2 - Palomino horses have a golden coat color, with a...Ch. 12.2 - A true-breeding rabbit with agouti (mottled,...Ch. 12 - The dominant C allele of a gene that controls...Ch. 12 - In peas, the allele Le produces tall plants and...Ch. 12 - Prob. 3TYKCh. 12 - What genotypes, and in what frequencies, will be...Ch. 12 - In addition to the two genes in problem 4, assume...Ch. 12 - Prob. 6TYK
Ch. 12 - In cats, the genotype AA produces tabby fur color;...Ch. 12 - Prob. 8TYKCh. 12 - The ability of humans to taste the bitter chemical...Ch. 12 - A man is homozygous dominant for alleles at 10...Ch. 12 - In guinea pigs, an allele for rough fur (R) is...Ch. 12 - Prob. 12TYKCh. 12 - Some recessive alleles have such a detrimental...Ch. 12 - In chickens, feathered legs are produced by a...Ch. 12 - A mix-up in a hospital ward caused a mother with O...Ch. 12 - Having malformed hands with shortened fingers is a...Ch. 12 - Prob. 17TYKCh. 12 - Design an Experiment Imagine that you are a...Ch. 12 - Prob. 19TYKCh. 12 - Prob. 1ITDCh. 12 - Prob. 2ITDCh. 12 - Half of the worlds population eats rice at least...
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- A particular walnut rooster was crossed to a pea hen, and the progeny consisted of 12 walnut, 11 pea, 3 rose, and 4 single chickens. What are the likely genotypes of the parents?arrow_forwardA plant with red flowers is crossed with a plant with white flowers and the resulting offspring have pink flowers. What type of inheritance pattern does this describe? If two plants with pink flowers are crossed, what will be the resulting phenotypes and in what ratio?arrow_forwardA heterozygous pea plant of both traits is crossed with a recessive pea plant of both traits. What is the probability that the offspring will be tall and yellow?arrow_forward
- A Pea plant with axial flower position, tall stem length, and green seed pod color is cross with another pea plant that has axial flower position, dwarf stem length, and yellow seed pod color. Assume heterozygosity for all dominant trait. What are the genotypes of the parents?arrow_forwardTwo plants, both heterozygous for the gene that controls flower color are crossed. What percentage of the offspring will have purple flowers? ______What percentage will have white flowers?arrow_forwardA cross between two plants that both have yellowflowers produces 80 offspring plants, of which 38have yellow flowers, 22 have red flowers, and 20have white flowers. If one assumes that this variation in color is due to inheritance at a single locus,what is the genotype associated with each flowercolor, and how can you describe the inheritance offlower color?arrow_forward
- In pea plants, green color (G) is dominant to albino (g). If we cross two pea plants that are heterozygous for color, what would be the expected phenotype ratio of the offspring? Do the Punnett square and write the phenotypic ratio in the space belowarrow_forwardIn snapdragons, heterozygotes for one of the genes have pink flowers, whereas homozygotes have red (R) or white (r) flowers. When plants with red flowers are crossed with plants with white flowers, what proportion/probability of the offspring will have pink flowers? Create a Punnett square.arrow_forwardIf two walnut combed chickens are crossed, and a ratio of 3:1 walnut comb:rose comb offspring results, what were the genotypes of the parents?arrow_forward
- In a dihybrid cross, a true breeding short white flowered plant is crossed with a non-true breeding tall purple flowered plant. Both tall and purple are dominant traits. What are the genotypes and phenotypes of the offspring generation and what are the ratios of each?arrow_forwardIn pea plants, the color yellow is dominant over the color green. If a homozygous yellow plant is crossed with a heterozygous yellow plant, what will be the genotypic ratio of the offspring?arrow_forwardIn a cross between fair skin, black hair (heterozygous for all these traits) with brown skin, red hair, which of the traits is/are dominant and which is/are recessive?arrow_forward
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