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Loose-leaf Version for What Is Life? A Guide to Biology 4E & LaunchPad for What is Life? A Guide to Biology 4E (Twelve Month Access)
4th Edition
ISBN: 9781319154639
Author: Jay Phelan
Publisher: W.H. Freeman & Co
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Chapter 11, Problem 2MC
Summary Introduction
Introduction:
Behaviors evolve in organisms much like other physical and physiological features.
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Students have asked these 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.
Which of the following is the MOST important characteristic of a trait for it to undergo descent with modification?
A.
It must be heritable.
B.
It must exhibit variation.
C.
It must exhibit phenotypic plasticity.
D.
Variation in the trait must be accompanied by variation in fitness.
What assumptions underlie the use of adoption studies in genetics?
a. Adoptees have no contact with their biological parents after birth.b. The adoptive parents and biological parents are not related.c. The environments of biological and adoptive parents are independent.d. All of the above.
Chapter 11 Solutions
Loose-leaf Version for What Is Life? A Guide to Biology 4E & LaunchPad for What is Life? A Guide to Biology 4E (Twelve Month Access)
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- Stabilizing selection on a trait tends toa. make the trait more extreme.b. reduce variability in the trait.c. decrease the frequency of alleles associated with the trait.d. result in elaborate male ornaments.arrow_forwardGoswami disagrees with the Darwinian concept of canalized behavior. What are his main criticisms of the inheritance of acquired characteristics? (Select all that apply) Choose at least one answer. L a. The Darwinian evolutionary process is very fast and can manifest in a few generations. b. The availability of prolonged environmental stress to produce canalization over an entire species population is unlikely. c. There is no evidence that learned behavior is passed down to descendants.arrow_forwardConsider the trait in Figure 22.5a. Which statement about this trait is correct? Please choose the best option. a) In humans, the trait cannot be explained by the theory of evolution by natural selection. b. In humans, the trait improves the biological fitness of individuals. c. In humans, the trait is similar to a functional version of the trait in closely related species. d. Humans lack vestigial traitsarrow_forward
- In Darwin's theory of natural selection, which of the following is a source of evolution: a. Individuals with random mutations who die without reproducing. b. Individuals with random mutations who are able to reproduce. c. Individuals who do not vary from their progenitors. d. Intelligent and purposeful design.arrow_forwardJean-Baptiste Lamarck was one of the first scientists to propose a method for evolutionary change. He suggested that an organism's body would adapt to its surrounding based upon the use or disuse of certain body parts. Why was this a mistaken idea? a As species become distinctly different from each other, so do their body forms, which is a result of their genes changing. b Individuals adapt and change, not populations. c Evolutionary change can only act upon traits that are inheritable, not traits that are acquired through an organism's lifetime. d When an organism migrates to a new environment or the environment it currently lives in changes, the organism must adapt, or it will not survive.arrow_forwardWhich of the following is the definition of the term named Homozygous? a.Refers to genes that have identical alleles b.Genetic constitution of an organism c.Alternative form of a gene d.Trait expressed in the F1 generation e.Fundamental physical and functional unit of heredity f.Physical expression of traits of an organismarrow_forward
- In the context of genetic influence on individual differences, the degree of genetic influence typically a. increases from infancy through childhood, and then decreases from childhood through adulthood. b. decreases from infancy through adulthood. c. remains stable from infancy through adulthood. d. increases from infancy through adulthood.arrow_forwardA gene exists in two alleles, and the heterozygote has the highest fitness. This situation is likely to result in a. directional selection. c. disruptive selection. b. stabilizing selection. d. balancing selection.arrow_forwardLamarck's theory of inheritance of acquired characteristics did NOT include which of the following ideas? Select one: a. The environment plays a role in selecting favourable characteristics b. Physical characteristics acquired during a lifetime can not be passed to offspring c. Organisms can change during their own lifetime d. Physical activities can change organisms O O Oarrow_forward
- You are studying a genetically modified mouse that produces electric blue fur, which is not a fur color observed in nature. You notice that females prefer males that have the blue fur when given a choice test for mates. This result supports which of the following models of sexual selection? a. Sexual selection for indirect benefits b. Sexual selection for direct benefits c. Sexual selection for arbitrary traits d. None of the abovearrow_forwardA common and accurate definition of evolution is the change of an individual’s heritable trait. a. False b. Truearrow_forwardresults in condensed chromatin, which makes DNA inaccessible, and results in open chromatin, which makes DNA accessible. Oxidation; Nitrification OAcetylation; methylation O Methylation; acetylation O Nitrification; oxidationarrow_forward
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