Biology - Study Guide
8th Edition
ISBN: 9780321501561
Author: Martha R. Taylor
Publisher: PEARSON EDUCATION (COLLEGE)
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Chapter 14, Problem 8TYK
In the F2 of a dihybrid cross involving two independently assorting genes, what proportion of the offspring will be true-breeding?
- a. ½.
- b. ¼.
- c. ⅛.
- d. ⅜.
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Predict the outcome of two-factor crosses using a Punnettsquare
Chapter 14 Solutions
Biology - Study Guide
Ch. 14 - Fill in the following diagram of a cross of...Ch. 14 - A tall pea plant is crossed with a recessive dwarf...Ch. 14 - A true-breeding tall, purple-flowered pea plant...Ch. 14 - a. In the following cross, what is the probability...Ch. 14 - Prob. 5IQCh. 14 - Consider an example in which the M/m gene (for...Ch. 14 - The height of spike weed is a result of polygenic...Ch. 14 - Consider the following pedigree for the trait...Ch. 14 - a. What is the probability that a mating between...Ch. 14 - If two prospective parents both have siblings who...
Ch. 14 - Prob. 1SYKCh. 14 - How many different types of gametes can be formed...Ch. 14 - Prob. 3SYKCh. 14 - _______ gene Description a. has no effect on...Ch. 14 - _________ allele Description a. has no effect on...Ch. 14 - Prob. 3TYKMCh. 14 - Prob. 4TYKMCh. 14 - __________ dominant allele Description a. has no...Ch. 14 - __________ recessive allele Description a. has no...Ch. 14 - __________ genotype Description a. has no effect...Ch. 14 - Prob. 8TYKMCh. 14 - Prob. 9TYKMCh. 14 - Prob. 10TYKMCh. 14 - Prob. 11TYKMCh. 14 - Prob. 12TYKMCh. 14 - According to Mendels law of segregation, a. there...Ch. 14 - The F2 generation a. has a phenotypic ratio of...Ch. 14 - A 1:1 phenotypic ratio in a testcross indicates...Ch. 14 - Which phase of meiosis is most directly related to...Ch. 14 - After obtaining two heads from two tosses of a...Ch. 14 - The probability of tossing three coins...Ch. 14 - The probability of tossing three coins...Ch. 14 - In the F2 of a dihybrid cross involving two...Ch. 14 - In guinea pigs, the brown coat color allele (B) is...Ch. 14 - A true-breeding dwarf corn plant with red ears is...Ch. 14 - Prob. 11TYKCh. 14 - Prob. 12TYKCh. 14 - Prob. 13TYKCh. 14 - In humans, earwax can be wet or dry. The form of...Ch. 14 - You have blood type B, your mother has blood type...Ch. 14 - Prob. 16TYKCh. 14 - Summer squash are either white or yellow. To get...Ch. 14 - Prob. 2GPCh. 14 - True-breeding tall red-flowered plants are crossed...Ch. 14 - Prob. 4GPCh. 14 - Prob. 5GPCh. 14 - Prob. 6GPCh. 14 - Prob. 7GPCh. 14 - Prob. 8GPCh. 14 - Prob. 9GPCh. 14 - Fur color in rabbits is determined by a single...Ch. 14 - Prob. 11GPCh. 14 - The ability to taste phenylthiocarbamide (PTC) is...Ch. 14 - Prob. 13GPCh. 14 - Prob. 14GPCh. 14 - Prob. 15GPCh. 14 - Prob. 16GPCh. 14 - Imagine that a newly discovered, recessively...Ch. 14 - In mice, black fur (B) is dominant to white (b)....
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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
- Imagine a test cross for an unknown exhibiting 2 traits, where half of the offspring exhibit both dominant traits and the other half exhibits one dominant and one recessive trait. What can you conclude about the unknown? options: A) The unknown is homozygous dominant for both traits. B) The unknown is homozygous recessive for both traits. C) The unknown is heterozygous for both traits. D) The unknown is homozygous for one gene and heterozygous for the other. E) There is not enough information to determine the answer.arrow_forwardPredict the outcome of single-factor crosses using a Punnettsquarearrow_forwardIn a trihybrid cross involving three traits where the parents are AaBbCc. (a) What is the probability of them producing an offspring recessive for all three traits? (b) What is the probability of offspring with phenotype A_bbc_?arrow_forward
- In a bird, codominance is seen in feather color. If a red bird is mated with red and white, what is the probability of having a red and white bird? Show the cross.arrow_forwardConsider the cross AaBbCC x AABbCc a) How many different gamete genotypes can each organism make? b) Predict the phenotypic ratios of the offspring using either a punnet square or forked line method.arrow_forwardWhich evidence supports Mendel’s law of independent assortment? A. In a monohybrid cross, both traits appear in the offspring. B. In a monohybrid cross, only the dominant traits appear in the offspring. C. In a dihybrid cross, only the dominant traits appear in the offspring. D. In a dihybrid cross, all four traits appear in all combinations in the offspring.arrow_forward
- a diagram of a pedigree showsarrow_forwardUse the product rule to determine the chance of obtaining an offspringwith the genotype Rr Yy from a dihybrid cross between parents withthe genotype Rr Yy.a. ½ c. 1/4b. ¼ d. 1⁄16arrow_forwardImagine that you are performing a cross involving seed color in garden pea plants. What traits would you expect to observe in the F1 offspring if you cross true-breeding parents with green seeds and yellow seeds? Yellow seed color is dominant over green. a. only yellow-green seeds b. only yellow seeds c. 1:1 yellow seeds:green seeds d. 1:3 green seeds:yellow seedsarrow_forward
- What is the reason for doing a test cross? a. to identify heterozygous individuals with the dominant phenotype b. to determine which allele is dominant and which is recessive c. to identify homozygous recessive individuals in the F2 d. to determine if two genes assort independentlyarrow_forwardUse a Punnett square to predict the offspring in a cross between a tall pea plant (heterozygous) and a tall pea plant (heterozygous). What is the genoypic ratio of the offspring?arrow_forwardUse a Punnett square to predict the offspring in a cross between a dwarf pea plant (homozygous recessive) and a tall pea plant (heterozygous). What is the phenotypic ratio of the offspring?arrow_forward
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