Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780321962751
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Chapter 11.2, Problem 3CC
Summary Introduction
To determine:
The fraction of off springs with a genotype consisting of at least two alleles in homozygous recessive state from the cross between PpYyIi and ppYyii.
Concept introduction:
A cross in which alleles for three characters are used is called a trihybrid cross. In a trihybrid cross, all the three laws of inheritance given by Mendel are followed which are: law of dominance, law of segregation and law of independent assortment.
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For practice construct a Genetic map with three genes in Arabidopsis plants. A short plant (hy) is recessive to tall plant (HY), a red flower (r) is recessive to white flower (R); and long pollen (po) is recessive to oval shaped pollen (PO). You can come up with arbitrary number of progenies for each class of offspring (follow the numbers like in Fig. 7.14)
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Height in merigonias is determined by three unlinked genes that act additively. Each has two alleles, one compltely dominant allele(A,B or C) that makes plants taller and one recessive allele that makes plants shorter. Do the corss AaBbCc X AaBbCc. The fraction of The F1 progenty will be ? Pls explain it with more details. thanks
Chapter 11 Solutions
Campbell Biology in Focus (2nd Edition)
Ch. 11.1 - DRAW IT Pea plants heterozygous for flower...Ch. 11.1 - List all gametes that could be made by a pea plant...Ch. 11.1 - Prob. 3CCCh. 11.2 - For any gene with a dominant allele A and...Ch. 11.2 - Two organisms, with genotypes BbDD and BBDd, are...Ch. 11.2 - Prob. 3CCCh. 11.3 - Incomplete dominance and epistasis are both terms...Ch. 11.3 - Prob. 2CCCh. 11.3 - WHAT IF? A rooster with gray feathers and a hen of...Ch. 11.4 - Beth and Tom each have a sibling with cystic...
Ch. 11.4 - MAKE CONNECTIONS In Table 11.1, note the...Ch. 11 - DRAW IT Two pea plants heterozygous for the...Ch. 11 - A man with type A blood marries a woman with type...Ch. 11 - A man has six fingers on each hand and six toes on...Ch. 11 - Prob. 4TYUCh. 11 - Flower position, stem length, and seed shape are...Ch. 11 - Prob. 6TYUCh. 11 - Prob. 7TYUCh. 11 - Prob. 8TYUCh. 11 - Prob. 9TYUCh. 11 - Prob. 10TYUCh. 11 - In tigers, a recessive allele that is pleiotropic...Ch. 11 - Prob. 12TYUCh. 11 - Imagine that you are a genetic counselor, and a...Ch. 11 - Prob. 15TYUCh. 11 - Prob. 16TYUCh. 11 - Prob. 17TYU
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- 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.arrow_forwardEXAMPLE PROBLEM A plant with orange, spotted flowers was grown in the greenhouse from a seed collected in the wild. The plant was self-pollinated and gave rise to the following progeny: 88 orange with spots, 34 yellow with spots, 32 orange with no spots, and 8 yellow with no spots. What can you conclude about the dominance relationships of the alleles responsible for the spotted and unspotted phenotypes? What can you conclude about the genotype of the original plant that had orange, spotted flowers?arrow_forwardThx!arrow_forward
- Dihybrid Cross In garden pea plants, tall plant height (T) is dominant to dwarf plant height (t) and the trait for axial flower position (F) is dominant to terminal flower position (f). If two plants, both with the genotype. TtFf are crossed, what is the phenotypic ratio for the offspring?arrow_forwardWHAT IF? A rooster with gray feathers and a hen ofthe same phenotype produce 15 gray, 6 black, and8 white chicks. What is the simplest explanation for theinheritance of these colors in chickens? What phenotypeswould you expect in the offspring of a cross betweena gray rooster and a black hen?arrow_forwardHelp mearrow_forward
- I need explanation for the why the answer is correct? And why would the other options wrongarrow_forwardPlease help me understandarrow_forwardCrossing Pea Plants: Mendels Study of Single Traits Stem length in pea plants is controlled by a single gene. Consider the cross of a true-breeding long-stemmed variety to a true-breeding short-stemmed variety in which long stems are completely dominant. a. If 120 F1 plants are examined, how many plants are expected to be long stemmed? Short stemmed? b. Assign genotypes to both P1 varieties and to all phenotypes listed in (a). c. A long-stemmed F1 plant is self-crossed. Of 300 F2 plants, how many should be long stemmed? Short stemmed? d. For the F2 plants mentioned in (c), what is the expected genotypic ratio?arrow_forward
- Character Seed Shape Round (R) Wrinkled (r) Seed Color Yellow (Y) Green (y) Pod Shape Inflated (I) Constricted (i) If a plant that is heterozygous for all theses characters is crossed with a plant homozygous dominant for seed shape and seed color and heterozygous for pod shape, what proportion of the offspring would you expect to be as follows: 1. Homozygous dominant for the three characters. (Answer in fraction) ____ 2. Recessive for the three characters. (Answer in fraction) _________ 3. Heterozygous dominant for the three characters. Answer in fraction) _______arrow_forwardFor number 15-24. In man, assume that spotted skin (S) is dominant over non-spotted skin (s) and that wooly hair (W) is dominant over non-wooly hair (w). Cross a heterozygous parent (SsWw) with a heterozygous parent (Ssww) Give genotypic and phenotypic ratios of offspring. 15-18. What is the probability of producing spotted skin with non-wooly hair? 8/16 4/16 3/16 6/16 8/16 A. B. C. D. E. 19-21. What is the probability of producing non-spotted skin with non-wooly hair? A 2/16 B. 4/16 C. 1/16 D. 6/16 22-24. What is the probability of producing non-spotted skin with wooly hair? A 3/16 В. 4/16 с. 1/16 D. 9/16 E. 8/16arrow_forward. Assume that white color (W) is dominant over yellow color (w) in corn. Perform a Punnett square for a cross where pollen from the anthers of a plant that is heterozygous for color is placed on the pistil of a yellow-fruited plant. What are the genotypes and phenotypes you would expect to find from this cross?arrow_forward
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