Biological Science (6th Edition)
6th Edition
ISBN: 9780321976499
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Emily Taylor, Greg Podgorski, Jeff Carmichael
Publisher: PEARSON
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Textbook Question
Chapter 1, Problem 3TYK
What does it mean to say that a characteristic is heritable?
a. The characteristic evolves.
b. The characteristic can be passed on to offspring.
c. The characteristic is advantageous to the organism.
d. The characteristic does not vary in the population.
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Which statement illustrates the connection between natural selection and overreproduction of a population?
a) populations vary in their inherited traits.
b) species produce more offspring than can survive in the environment.
c) individuals with inherited traits that promote survival tend to have more surviving offspring.
d) individuals with traits that do not enhance survival cannot reproduce.
Which BEST describes how survival of the fittest relates to natural selection?
A) Organisms with favorable traits will be naturally selected to pass their traits on to the next generation.
B) Organisms with the lowest gene mutations will be naturally selected to pass their traits on to the next generation.
C) Organisms with the most recessive genes will be naturally selected to pass their traits on to the next generation.
D) Organisms living in a stable environment will be naturally selected to pass their traits on to the next generation.
Give typing answer with explanation and conclusion
It is often said that “an allele that results in fitness losses for both actor and recipient would quickly be eliminated by natural selection”. Explain.
Chapter 1 Solutions
Biological Science (6th Edition)
Ch. 1 - Anton van Leeuwenhoek made an important...Ch. 1 - 2. PROCESS OF SCIENCE What does it mean to say...Ch. 1 - What does it mean to say that a characteristic is...Ch. 1 - 4. Could both the food competition hypothesis and...Ch. 1 - Prob. 5TYUCh. 1 - What did Linnaeus' system of naming organisms...Ch. 1 - 7. What is “selected” during natural selection?...Ch. 1 - 8. PROCESS OF SCIENCE Explain why researchers...Ch. 1 - CAUTION A friend tells you that the theory of...Ch. 1 - Prob. 10TYPSS
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- In a few short sentences, explain what Descent with Modification means. (Use your own words).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_forwardWhich scientific concept did Charles Darwin and Alfred Wallace independently discover? a. mutation b. natural selection c. overbreeding d. sexual reproductionarrow_forward
- Give typed explanation not written How can we measure gene flow between discrete populations? a. By estimating the proportion of individuals in the populations that are immigrants. b. By estimating the migration variance (σm2). c. By counting the number of offspring each individual has. d. By counting the number of connected populations.arrow_forwardIs it better for an organism to maximize their direct fitness or their indirect fitness? a. Direct Fitness b. Indirect Fitness c. Trick question. Neither Direct or Indirect Fitness matter in evolution.arrow_forwardAlleles that increase resistance to disease are expected to increase in frequency in the population as a result of? a. positive selection b. negative selection c. balancing selection d. artificial selectionarrow_forward
- 1) 10,000 individuals are sampled from a population and are found to display one of three blood types: AA with 6800 individuals, AB with 2800 individuals and type BB with 400 individuals. a) What is the frequency of each genotype in the population? b) What is the frequency of the A allele? c) What is the frequency of the B allele? d) If the next generation contains 25,000 individuals, how many would have blood type BB, assuming the population is in Hardy-Weinberg Equilibrium?arrow_forwardUse the diagram below to answer the question. In the population of insects shown, insects with spots have the genotype Aa or AA and bugs with no spots have the genotype aa. Which argument best supports the phenomenon shown in the diagram? There was an increase in the fitness of the gene There was an increase in the fitness of the gene There was an increase in the mutation rate of gene There was an increase in the mutation rate of genearrow_forwardwhat kind of traits influence how a species contributes to a community? give an example TIA!!arrow_forward
- In genetics, what does the term population mean? Pick any species you like and describe how its population might change over the course of many generations.arrow_forwardHow does genetic flow affect the recipient population? A:Increases genetic variability B:Exacerbates the effect of natural selection C:Exacerbates the effect of genetic drift D:Increases random matingarrow_forwardDesign a board game about Natural Selection.arrow_forward
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