Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN: 9781305073951
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 18, Problem 10SQ
Molecular clocks are based on comparisons of the number of ______ mutations between species.
- a. lethal
- b. neutral
- c. conservative
- d. nonconservative
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Which statement about the neutral-mutation hypothesis is true? a. All proteins are functionless. b. Natural selection plays no role in evolution. c. Many molecular variants are functionally equivalent. d. All of the above
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.
Are 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.
Chapter 18 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 18 - In cladistics, the only taxon that is always...Ch. 18 - Prob. 2SQCh. 18 - A clade is _________. a. defined by a derived...Ch. 18 - Prob. 4SQCh. 18 - In cladograms, sister groups are _______ . a....Ch. 18 - Through _______, a body part of an ancestor is...Ch. 18 - Homologous structures among major groups of...Ch. 18 - Prob. 8SQCh. 18 - Mitochondrial DNA sequences are often used in...Ch. 18 - Hawaiian Honeycreeper Phylogeny The Poouli...
Ch. 18 - Prob. 2DAACh. 18 - Hawaiian Honeycreeper Phylogeny The Poouli...Ch. 18 - Hawaiian Honeycreeper Phylogeny The Poouli...Ch. 18 - Molecular clocks are based on comparisons of the...Ch. 18 - True or false? DNA barcoding can identify an...Ch. 18 - A mutation that alters the embryonic expression...Ch. 18 - All of the following data types can be used as...Ch. 18 - True or false? Phylogeny helps us study the spread...Ch. 18 - Prob. 15SQCh. 18 - In the late 1800s, a biologist studying animal...Ch. 18 - The photos shown above illustrate a case of...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Single penny tossed 20 times and counting heads and tails: Probability (prediction): _______/20 heads ________/...
Laboratory Manual for Holes Human Anatomy & Physiology Fetal Pig Version
More than one choice may apply. Using the terms listed below, fill in the blank with the proper term. anterior ...
Essentials of Human Anatomy & Physiology (12th Edition)
What were the major microbiological interests of Martinus Beijerinck and Sergei Winogradsky? It can be said tha...
Brock Biology of Microorganisms (14th Edition)
Explain why hyperthermophiles do not cause disease in humans.
Microbiology with Diseases by Taxonomy (5th Edition)
Jellyfish Lake, located on the Pacific island of Palau, is home to millions of jellyfish. Many years ago, sea l...
BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
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
- A researcher compares several species of maple tree by examining the amino acid sequence of a protein. The researcher discovers that the amino acid sequence differs in three locations depending on the species of tree. What can the researcher conclude based on this data? A. Maple trees are evolving rapidly. B. The different species have different morphological characteristics. C. The maple trees have been exposed to high levels of mutagens. D. The genetic makeup of the maple tree population has changed over time.arrow_forwardIf a species is immutable (mutations do not occur) is evolution possible? Explainarrow_forwardThe fact that DNA sequences are more similar in more closely related organisms is evidence of what? a. optimal design in organisms b. adaptation c. mutation d. descent with modificationarrow_forward
- Why are humans so genetically similar within our species? A. Because humans evolved in multiple locations around the world at different times. B. Because humans evolved in one location (Africa) and we have existed as a species for very long time. C. Because humans evolved in one location (Africa) and we haven't existed as a species for very long. D. Humans are not very genetically similar to one another.arrow_forwardWould the rate of deleterious or beneficial mutations be a good molecular clock? Why or why not?arrow_forwardWhy are humans so genetically similar within our species? A. Humans are not very genetically similar to one another. B. Because humans evolved in one location (Africa) and we have existed as a species for very long time. C. Because humans evolved in multiple locations around the world at different times. D. Because humans evolved in one location (Africa) and we haven't existed as a species for very long.arrow_forward
- Which of the following most accurately describes mutations? a. They typically have immediate and impactful evolutionary effects on populations. b. They are required for all populations to evolve. c. They are always deleterious. d. They occur so infrequently that most populations to harbor very little variation.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_forwardThe challenge in using sequence data to estimate the evolutionary tree for all living things is to find a gene that shows recognizable sequence similarities even between highly distantly related species . Which of the following should NOT be among the features of this gene? A. The gene subject to strong diversifying selection. B. It is present in all organisms. C. It encodes a product whose function is essential. D. The function of the gene must have remained the same in all organisms.arrow_forward
- Most mutations relevant to evolution occur because A. of DNA replication during mitosis B. of DNA replication errors during meiosis C. of mutagens such as UV light D. All of the above E. A & B only Group of answer choices A. B. C. D. E.arrow_forwardSubject: Microbiology Some scientists suggest that mutation is the single most important event in evolution. Do you agree? Why or why not?arrow_forwardCompare and Contrast Synthetic Theory with: a. Lamarckian Theory b. Darwinian Theory c. De Vries Theoryarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage Learning
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Mitochondrial mutations; Author: Useful Genetics;https://www.youtube.com/watch?v=GvgXe-3RJeU;License: CC-BY