EP CONNECT ONLINE ACCESS FOR BIOLOGY
20th Edition
ISBN: 9781260494655
Author: Raven
Publisher: MCG COURSE
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Textbook Question
Chapter 12, Problem 6U
a. an alteration of dominance for multiple alleles of a single gene.
b. the presence of multiple alleles for a single gene.
c. the action of one gene on multiple phenotypes.
d. the action of multiple genes on a single phenotype.
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In a hypothetical population, matings involving two individuals heterozygous for the phenylketonuria allele on chromosome 12 result in 10% of the offspring showing the effects of the disease. This percentage arises because:
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Chapter 12 Solutions
EP CONNECT ONLINE ACCESS FOR BIOLOGY
Ch. 12.1 - Prob. 1LOCh. 12.1 - Explain the advantages of Mendels experimental...Ch. 12.2 - Evaluate the outcome of a monohybrid cross.Ch. 12.2 - Explain Mendels Principle of Segregation.Ch. 12.2 - Compare the segregation of alleles with the...Ch. 12.3 - Evaluate the outcome of a dihybrid cross.Ch. 12.3 - Explain Mendels Principle of Independent...Ch. 12.3 - Compare the segregation of alleles for different...Ch. 12.4 - Prob. 1LOCh. 12.4 - Prob. 2LO
Ch. 12.5 - Interpret data from testcrosses to infer unknown...Ch. 12.6 - Describe how assumptions in Mendels model result...Ch. 12.6 - Prob. 2LOCh. 12.6 - Explain the genetic basis for observed alterations...Ch. 12 - Inquiry question What confounding problems could...Ch. 12 - Prob. 2IQCh. 12 - Prob. 1DACh. 12 - Prob. 2DACh. 12 - Prob. 3DACh. 12 - What property distinguished Mendels investigation...Ch. 12 - The F1 generation of the monohybrid cross purple...Ch. 12 - The F1 plants from the previous question are...Ch. 12 - In a cross of Aa Bb cc X Aa Bb Cc, what is the...Ch. 12 - An organisms __________ is/are determined by its...Ch. 12 - Phenotypes like height in humans, which show a...Ch. 12 - Japanese four oclocks that are red and tall are...Ch. 12 - If the two genes in the previous question showed...Ch. 12 - What is the probability of obtaining an individual...Ch. 12 - Prob. 4ACh. 12 - Prob. 5ACh. 12 - Mendels model assumes that each trait is...Ch. 12 - z1. Create a Punnett square for the following...Ch. 12 - Explain how the events of meiosis can explain both...Ch. 12 - Prob. 3SCh. 12 - In mammals, a variety of genes affect coat color....
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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
- A true breeding plant that produces elongated fruits is crossed to a true breeding plant that produces round fruits. The offspring of this cross all have oval-shaped fruit. Which of the following is true? A. This involves two genes, one that controls the length of the fruit and one that controls the width. B. This long allele is epistatic over the short allele. C. The long allele is dominant over the short allele. D. The long allele is incompletely dominant over the short allele.arrow_forwardWhich of the following is false, regarding the law of segregation? A. It states that each of two alleles for a given trait segregate into different gametes. B. It can be explained by the segregation of sister chromatids during mitosis. C. It can account for the 3:1 ratio seen in the F2 generation of Mendel's crosses. D. It can be used to predict the likelihood of transmission of certain genetic diseases within families.arrow_forwardBased on the allelic gene interaction in Australian milking shorthorn cattle breeds, the mating of a red cattle (RR) and white cattle is depicted in the picture below. What is gene interaction involved in this resulting coat color of the offspring? see photo attached a. Complete dominance b. Incomplete dominance c. Codominance d. Additive gene actionarrow_forward
- The color of chickens is determined by interacting loci: AA or Aa give white, aaBB or aaBb give colored, and aabb produce white. Describe the epistatic interactions occurring between these two genes: A. aa is epistatic to B_, bb and bb are epistatic to A_,aa B. A_ is epistatic to B_,bb and bb is epistatic to A_,aa C. None of the abovearrow_forwardWhen you cross true-breeding tall and short tobacco plants you get an F1 that is intermediate in height. When this F1 is self-crossed, it yields an F2 with a continuous distribution of heights. What is the best explanation for these data? a. Height is determined by a single gene with incomplete dominance. b. Height is determined by a single gene with many alleles. c. Height is determined by the additive effects of many genes. d. Height is determined by epistatic genes.arrow_forwardIn a certain species of plant loci A, B and C have an additive effect on the colour of the flower. Alleles A, B, and C are dominant and alleles a, b and c are recessive. Knowing that a plant with genotype AAbbCc has a pink flower, which genotype, among the ones listed below, will produce the same phenotype? a. AABBCc b. AaBbCc c. Aabbcc d. aabbccarrow_forward
- Which of the following statements correctly describes the Law of Independent Assortment? a. A large Punnett square can be used to predict the outcome of a parental cross involving two traits. b. Non-allelic genes do not affect each other if they are located on separate chromosomes. c. Sometimes all alleles lack dominance, which leads to a blending of traits. d. The dominant allele is represented with an uppercase letter and the recessive allele is represented with a lowercase letter.arrow_forwardWhich of the following terms describes the relationship between two genes? A. Complete dominance B. Incomplete dominance. C. Co-dominance D. Epistasisarrow_forwardIn certain species of flies, eye color is controlled by sim-·ple dominance by a single pair of alleles. A red-eyed fly was crossed with a white-eyed fly, both of whose parents had white eyes. All of their offspring (both female and male) had red eyes.a. Which is dominant, the allele for red eyesor the allele for white eyes?b. What is the genotype of the white-eyed parents?c. If the white-eyed parent was mated with one of the red-eyed offspring, what phenotypic ratio wouldyou expect regarding eye color?arrow_forward
- Which of the following is true of genomic imprinting? a. The sex of the parent that transmits an allele affects the expression of the allele in the offspring. b. The sex of the offspring affects the expression of an allele inherited from one of the parents. c. The sex of the parent affects how an allele is transmitted to the offspring. d. The sex of the offspring affects which allele is inherited from the parent.arrow_forwardWhich of the following statements correctly describes the Law of Independent Assortment? Select one: a. Sometimes all alleles lack dominance, which leads to a blending of traits. b. The allele a gamete receives for one gene does not influence the allele received for another gene, if the two genes are located on different chromosomes. c. The dominant allele is represented with an uppercase letter and the recessive allele is represented with a lowercase letter. d. A large Punnett square can be used to predict the outcome of a parental cross involving two traits.arrow_forwardhelparrow_forward
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