Biology: Science for Life with Physiology (6th Edition) (Belk, Border & Maier, The Biology: Science for Life Series, 5th Edition)
6th Edition
ISBN: 9780134555430
Author: Colleen Belk, Virginia Borden Maier
Publisher: PEARSON
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Chapter 9, Problem 2LTB
What factors cause quantitative variation in a trait within a population?
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What is the ultimate cause of variation in populations?
Give at least one example of why certain complicated qualities are also known as quantitative traits.
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Chapter 9 Solutions
Biology: Science for Life with Physiology (6th Edition) (Belk, Border & Maier, The Biology: Science for Life Series, 5th Edition)
Ch. 9 - Is a round yellow pea seed (genotype Rr Y y) an...Ch. 9 - What factors cause quantitative variation in a...Ch. 9 - The DNA profile below is from a mother, a father,...Ch. 9 - Prob. 4LTBCh. 9 - Prob. 5LTBCh. 9 - Prob. 6LTBCh. 9 - Prob. 7LTBCh. 9 - Prob. 8LTBCh. 9 - Add labels to the figure that follows, which...Ch. 9 - Prob. 10LTB
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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
- What is population genetics?arrow_forwardWhich type of selection (directional, disruptive, stabilizing) changes the overall average phenotype in a population? How does it do this? What does "additive” mean? Why aren't dominant and epistatic variances considered to be additive?arrow_forwardIn a population, the dominant phenotype of a certain trait occurs 91% of the time. What is the frequency of the dominant allele?arrow_forward
- Define about quantitative trait locus (QTL) ?arrow_forwardIn population genetics, for a locus with two alleles, we use the variable q to indicate. Freq(a), the frequency of the recessive allele Freq(Aa), the frequency of the Aa genotype Freq(AA), the frequency of the AA genotype Freq(A), the frequency of the dominant allele Freq(aa), the frequency of the aa genotypearrow_forwardIn a system that meets the requirements for Hardy-Weinberg equilibrium 25% of individuals exhibit the recessive phenotype for a trait. What is the allele frequency of the dominant allele?arrow_forward
- WHAT CAN YOU SAY ABOUT THE FREQUENCY OF APPEARING THE HOMOZYGOUS DOMINANT, HETEROZYGOUS DOMINANT AND RECESSIVE TRAIT IN A POPULATION?arrow_forwardExplain the difference between a continuous trait and a discontinuous trait. Give two examples of each. Are quantitative traits likely to be continuous or discontinuous? Explain why.arrow_forwardWhat impact do cases a multiple alleles have on the number of kinds of phenotypes displayed in the population?arrow_forward
- How do geneticists detect the presence of genetic variation as different alleles in a population?arrow_forwardWhich of the following statements about quantitative genetics is TRUE? Heritability is the measure of the proportion of an individual's phenotype that is due to genetics. QTL mapping provides an overestimate of the number of genes contributing to a quantitative trait. A threshold trait is measured in whole numbers. An H2 value (broad-sense heritability) that approaches 0.0 means that almost all the phenotypic variation is determined by genetic differences. The h2 (narrow-sense heritability) value is a prediction of the impact that selection may have in altering an initial population by artificial selection.arrow_forwardSixteen percent (16%) of the population is homozygous recessive for a trait. What are the frequencies of the dominant and recessive alleles of that trait?arrow_forward
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