Campbell Biology in Focus
3rd Edition
ISBN: 9780134710679
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca Orr
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 21.3, Problem 3CC
WHAT IF? Suppose two plant populations exchange pollen and seeds. In one population, individuals of genotype AA are most common (9,000 AA, 900 A8. 100 88), while the opposite is true in the other population (100 AA, 900 Aa, 9,000 aa). If neither allele has a selective advantage, what will happen over time to the allele and genotype frequencies of these populations?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
solve this please, the 1st problem. with explanation
asap please with good explanation
Do explain.
Chapter 21 Solutions
Campbell Biology in Focus
Ch. 21.1 - Explain why genetic variation within a population...Ch. 21.1 - Of all the mutations that occur in a population,...Ch. 21.1 - Prob. 3CCCh. 21.2 - A population has 700 individuals, 85 of genotype...Ch. 21.2 - The frequency of allele a is 0.45 for a population...Ch. 21.2 - WHAT IF? A locus that affects susceptibility to a...Ch. 21.3 - In what sense is natural selection more...Ch. 21.3 - Distinguish genetic drift from gene flow in terms...Ch. 21.3 - WHAT IF? Suppose two plant populations exchange...Ch. 21.4 - What is the relative fitness of a sterile mule?...
Ch. 21.4 - Explain why natural selection is the only...Ch. 21.4 - Consider a population in which heterozygotes at a...Ch. 21 - Natural selection changes allele frequencies...Ch. 21 - Sparrows With average-sized w1ngs survive severe...Ch. 21 - If the nucleotide variability of a locus equals...Ch. 21 - There are 25 individuals in population 1, all with...Ch. 21 - A fruit fly population has a gene with two...Ch. 21 - FOCUS ON EVOLUTION Using at least TWO examples,...Ch. 21 - Prob. 8TYUCh. 21 - SYNTHESIZE YOUR KNOWLEDGE This kettle lake formed...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Plants use the process of photosynthesis to convert the energy in sunlight to chemical energy in the form of su...
Campbell Essential Biology (7th Edition)
5. In a type of parakeet known as a “budgie,” feather color is controlled by two genes. A yellow pigment is syn...
Genetic Analysis: An Integrated Approach (3rd Edition)
Fibrous connective tissue consists of ground substance and fibers that provide strength, support, and flexibili...
Human Biology: Concepts and Current Issues (8th Edition)
What is the difference between cellular respiration and external respiration?
Human Physiology: An Integrated Approach (8th Edition)
How many oxygen atoms are on the reactant side of this chemical equation? K2CO3(aq)+Pb(NO3)2(aq)2KNO3(aq)+PbCO3...
Introductory Chemistry (6th Edition)
You microscopically examine scrapings from a case of Acan-thamoeba keratitis. You expect to see a. nothing. b. ...
Microbiology: An Introduction
Knowledge Booster
Learn more about
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
- ANSWER THE PROBLEM 3 PLEASEarrow_forwarddo explain.arrow_forward10 Low altitude population When the researchers 5 grew cuttings from the same plants in a garden at high altitude, the high altitude plants made 5 15 25 35 45 55 65 75 10 - more stems (19.89 ± 2.26 versus 28.32 +2.54). High altitude population 5 15 25 35 45 55 65 75 Number of stems archers took seeds from the same plant (a pure lineage) and raised environments. The graphs above show how plants responded to different altitudes. Based on these graphs, we can conclude: 90. Res em in different a. The number of stems is not influenced by the environment b. The number of stems is a heritable trait c. The number of stems is lower in high altitudes d. The number of stems is higher in low altitudes c. The number of stems is influcnccd by the cnvironment Number of plantsarrow_forward
- 1)You measure the effects of a single allele (A2) on fitness in two populations of the same plant species, Population X and Population Y. Population X lives at higher altitudes. The average excess of fitness of the A2 allele (aA2) in Population X is 1.21, and the average fitness of the population (w) is 1.0. Population Y lives at a lower altitude. The average excess of fitness of the A2 allele (aA2) in Population Y is -1.68 and the average fitness of the population (w) is 1.0 a) Which population is likely to experience faster evolution? Why? b) What do you predict will happen to the frequency of the A2 allele (pA2) in population X? c) What do you predict will happen to the frequency of the A2 allele (pA2) in population Y? d) Why do you think the average excess of fitness of the A2 allele is different in these two populations?arrow_forwardGive typed full explanationarrow_forward下午7:08 1月27日周四 98% Yuki 1.23 AP环科课后作业和课堂笔记.pdf •.. 34. Which of the following statements about genetic diversity is true? (A) Genetic uniformity of a crop increases the crop’s overall resistance to pests and disease. (B) Genetic resistance to pests and diseases can be increased by crossing a crop plant with ancestral varieties. (C) Genetic engineering technology is used to increase genetic diversity by creating new species with synthetic genes. (D) Genetic diversity within populations of common crop species such as corn is typically high. (E) Genetic diversity is usually high in endangered species.arrow_forward
- Scenario 1In the 1960s, a population of squirrels (Sciurus carolensis) was being studied in Alabama and the coat color of the squirrels was found to range from the more common gray color (dominant) to the less common red color (recessive). When they sampled an area, they found 536 gray squirrels and 64 red squirrels. Assume that the population is at Hardy-Weinberg equilibrium. 3B. How many squirrels are heterozygous?(Put your answer here rounded to the nearest whole number)arrow_forwardAnswer this Hardy-Weinberg Equilebrium Problemarrow_forwardQ4.7. A large sunflower population is established in a field. The flowers mate randomly, and all individuals are equally likely to survive and reproduce. In this population, 60% of the alleles of a gene for petal color are dominant and 40% of the alleles are recessive. Given this information, after many generations, which of the following options would be most likely? The allele frequencies will be 100% dominant and 0% recessive. The allele frequencies will be 80% dominant and 20% recessive. The allele frequencies will be 60% dominant and 40% recessive. There is no way to predict what the allele frequencies will be.arrow_forward
- 12arrow_forwardScenario 1In the 1960s, a population of squirrels (Sciurus carolensis) was being studied in Alabama and the coat color of the squirrels was found to range from the more common gray color (dominant) to the less common red color (recessive). When they sampled an area, they found 536 gray squirrels and 64 red squirrels. Assume that the population is at Hardy-Weinberg equilibrium. 2B. What is the frequency of the dominant allele?(Put your answer here rounded to the nearest hundredth)arrow_forwardScenario 1In the 1960s, a population of squirrels (Sciurus carolensis) was being studied in Alabama and the coat color of the squirrels was found to range from the more common gray color (dominant) to the less common red color (recessive). When they sampled an area, they found 536 gray squirrels and 64 red squirrels. Assume that the population is at Hardy-Weinberg equilibrium. 3A. Show your work to find the number of heterozygous squirrels.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Genetic Variation and Mutation | 9-1 GCSE Science Biology | OCR, AQA, Edexcel; Author: SnapRevise;https://www.youtube.com/watch?v=bLP8udGGfHU;License: Standard YouTube License, CC-BY