Round and wrinkled seeds 2. Mendel conducted further experiments on pea plants with round seeds or wrinkled seeds. He found that round seeds (R) were dominant to wrinkled seeds (r). Complete the Punnett square to predict the proportion of phenotypes when hybrid pea plants are crossed with pure breeding wrinkled seed plants.

Round and wrinkled seeds 2. Mendel conducted further experiments on pea plants with round seeds or wrinkled seeds. He found that round seeds (R) were dominant to wrinkled seeds (r). Complete the Punnett square to predict the proportion of phenotypes when hybrid pea plants are crossed with pure breeding wrinkled seed plants.

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter3: Transmission Of Genes From Generation To Generation

Section: Chapter Questions

Problem 11QP: Crossing Pea Plants: Mendels Study of Single Traits Stem length in pea plants is controlled by a...

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Co- Dominance 1) In cattle, the alleles for red coat (R) and white coat (W) behave as the co-dominants. Both red and white hairs are produced in the heterozygote producing a coat pattern that is called "roan." a) Give the phenotypic and genotypic ratios to be expected among the offspring from a cross of two roan animals. b) What are the expected genotypic and phenotypic ratios from a cross of a roan animal and a white one?
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Crossover frequencies for some genes on a tomato plant: • Normal leaves (M) and tall plant (D) 12% • Normal leaves (M) and normal tomato (O) 33% • Normal leaves (M) and simple florescence (S) 64% • Tall plant (D) and normal tomato (0) 21% • Tall plant (D) and simple fluorescence (S) 52% Draw a chromosome map and state the cross-over frequency between genes for a normal tomato and simple florescence.
. Considering the yellow and green pea color phenotypes studied by Gregor Mendel:a. What is the biochemical function of the proteinthat is specified by the gene responsible for thepea color phenotype?b. A null allele of a gene is an allele that does notspecify any of the biochemical function that thegene normally provides. Of the two alleles Y and y,which is more likely to be a null allele?c. In terms of the underlying biochemistry, why is theY allele dominant to the y allele?d. Why are peas that are yy homozygotes green?e. The amount of the protein specified by a gene isroughly proportional to the number of functionalcopies of the gene carried by a cell or individual.What do the phenotypes of YY homozygotes, Yyheterozygotes, and yy homozygotes tell us aboutthe amount of the Sgr enzyme (the product of thepea color gene) needed to produce a yellow color?
Inheritance of a single gene: 6. Two black cats having small white patches mate: [NOTE: This is different from the question in the manual.] a. What are the possible phenotypes of their kittens? b. For each of these phenotypes, what is their probability? No white patches. [Choose ] [Choose ] 0.5 Small white patches. 0.75 0 0.25 Large white patches. [Choose ] All white. [Choose ] >
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Inheritance of a single gene: 4. A "chocolate" cat mates with a cat heterozygous at the gene for TRP-1: a. What is the probability of their kitten having brown coat color? 0.875 [Choose ] 0.375 b. What is the probability of their kitten having black coat color? 0 0.875 0.33 0.5 c. What is the probability of their brown kitten being homozygous for this gene? 0.25 0.75 1.0 d. What is the probability of their black kitten 0.625 being homozygous for this gene? 0.375 <
Monohybrid cross 1. In peas, tall|(T) is dominant to short(t). If a pure tall and a pure short plant are crossed, and the resulting offspring are crossed, how many of the F2 will be short if 120 plants are produced?