Biology: Life on Earth Plus Mastering Biology with Pearson eText -- Access Card Package (11th Edition)
11th Edition
ISBN: 9780134153742
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Chapter 16, Problem 4MC
Which of the following statements about mutations is False?
a. Mutations at a given chromosomal site are rare.
b. The genomes of most people contain some mutant alleles that are present in neither parent.
c. Mutations are the ultimate source of genetic variability.
d. Beneficial mutations are more likely to occur when an organism's needs change.
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Students have asked these similar questions
Which of the following does not support the idea of descent with modification?
A.
Organisms and the cells that they are composed of arise from DNA
B.
When organisms reproduce they generate new copies of DNA to pass down to their offspring
C.
We inherit traits from our ancestors because in possess molecules of their DNA that you received from your parents
D.
In the process of DNA replication, mutations occur with the goal of increasing an organism's fitness
Which of the following individuals would be considered to have the greatest evolutionary fitness?
a. Olympic speed skater with one child
b. an overweight person with three children
c. a woman who had six children, none of whom (the children) survived to adulthood
d. a single mom who adopted eight children
According to the video “The Biology of Skin Color”, why is it that the allele coding for darker skin did not evolve to protect us from skin cancer?
A. Because skin cancer isn't harmful
B. Darker skin did develop to protect us from skin cancer
C. Because skin cancer usually develops after an individual's reproductive years, so it doesn't affect the ability for someone to pass on their genes
D. Because skin cancer usually develops before an individual's reproductive years, so it doesn't affect the ability for someone to pass on their genes
Chapter 16 Solutions
Biology: Life on Earth Plus Mastering Biology with Pearson eText -- Access Card Package (11th Edition)
Ch. 16 - The alleles responsible for antibiotic resistance...Ch. 16 - Stabilizing selection on a trait tends to a. make...Ch. 16 - An adaptation is any trait that arises from a...Ch. 16 - 4. Which of the following statements about...Ch. 16 - 5. Genetic drift occurs
a. when different...Ch. 16 - The ________ provides a simple mathematical model...Ch. 16 - 2. Different versions of the same gene are called...Ch. 16 - An organism's ________ refers to the specific...Ch. 16 - 4. A random form of evolution is called _________....Ch. 16 - Competition is most intense between members of...
Ch. 16 - 6. The evolutionary fitness of an organism is...Ch. 16 - 1. What is a gene pool? How would you determine...Ch. 16 - 2. Define equilibrium population. Outline the...Ch. 16 - How does population size affect the likelihood of...Ch. 16 - If you measured the allele frequencies of a gene...Ch. 16 - 5. People like to say that “you can’t prove a...Ch. 16 - 6. Describe the three ways in which natural...Ch. 16 - What is sexual selection? How is sexual selection...Ch. 16 - In North America, the average height of adult...Ch. 16 - By the 1940s, the whooping crane population had...
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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
- Which of the following is false? a. The color of a fruit fly's eyes is a trait. b. The instructions for producing a trait are found in a gene that controls the physical expression of that trait. c. A gene can have different alleles that can specify different traits, such as red or brown eye color. d. The trait is influenced by the gene, independent of the environment. e. By studying the patterns of traits over generations of an organism, the genetic composition of an organism can be deduced.arrow_forwardPlease answer fast Which statement about genetic mutations is true? A. Most mutations do not cause changes to an organism’s fitness but will always affect the carrier individual’s physical traits. B. Many genetic mutations are neutral, and do not affect fitness. C. Mutations always create individuals with unique phenotypes, which are either desirable or undesirable in their environment. D. All mutations are fatal to the carrier organism.arrow_forwardIf this model continues, with no major changes to the environment, what do you expect to happen? A) rabbits will continue to get lighter over time B) there is no way to predict because mutations are random C) mutations will all die out leaving only the original fur color D) dark gray fur will become the common phenotype because it favors survivalarrow_forward
- Which of the following does not apply to mutations?a. They occur to cause adaptive changes in response to the environment.b. They are usually either harmful or neutral.c. They are only inherited if they occur in a sperm or egg cell.d. They often occur when DNA is copied.arrow_forwardPopulation genetics is the study of ________. a. how allele frequencies in a population change over time b. populations of cells in an individual c. the rate of population growth d. how genes affect embryological developmentarrow_forwardAre gene mutations caused by selective pressures in the environment? In other words, do gene mutations arise in an organism out of need or want? Group of answer choices A. No, because gene mutations are not purely random. B. Yes, because gene mutations are not purely random. C. No, because gene mutations are purely random. D. Yes, because gene mutations are purely random.arrow_forward
- Which of the following statements explains genetic variation? Genetic variation arises ____. When organisms need to change to survive in a new environment. From environmental changes that affect organisms. Through mutation and sexual reproduction. From traits acquired during the lifetime of an organism.arrow_forwardScientists are studying two populations of the same species of sea turtle. One population is quite small, with only 18 individuals, and the other is much larger, with 147 individuals. If a genetic factor such as a mutation were introduced to both populations at the same time, what could scientists predict about the impact?arrow_forwardOften successful domestication of a plant or animal is due to the fact that this involved just a few gene changes. In what situation can changes in just a few genes dramatically change an organism's entire appearance?arrow_forward
- Which of the following conclusions are MOST likely to be supported by genetic evidence? A. Some modern-day organisms did not exist in the past. B. Some organisms found in the fossil record do not currently exist. C. Environmental change affected the fitness of individuals differently based on their traits. D. Some disease-causing traits may remain in a population because their alleles provide an advantage to heterozygotes.arrow_forwardA single base change can create devastating genetic disorder or a beneficial adaption, or it might have no effect. How do mutations happen, and how do they influence the future of a species?arrow_forwardWhen the genomes of vertebrates are compared,a. genomes of closer relatives are more alike.b. genomes of closer relatives are less alike.c. genomic variation is essentially the same among relatives.d. genomes of more distant relatives are more alike.arrow_forward
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