1. Genetic variation _____. A. is created by the direct action of natural selection B. must...
1. Genetic variation _____.
A. is created by the direct action of natural selection
B. must be present in a population before natural selection can act upon the population
C. arises in response to changes in the environment
D. tends to be reduced by when diploid organisms produce gametes
2. What is a genetic correlation?
A. When selection favoring alleles for one trait causes a correlated but suboptimal change in an allele for another trait.
B. When two offspring inherit the same alleles from their parents.
C. When mutation occurs in two parts of the same gene.
D. A lack of genetic variation in a population.
Homework Answers
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1. Genetic variation _____.
A. is created by the direct action of natural selection
B. must...
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1. What happens to the within-group and between-group genetic variation of the population when gene flow...
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biology please help--gene pools
1. One of the important theoretical concepts in population genetics is that of genetic equilibrium, which the Aarge, randomly mating population, allele frequencies do not change from generation to generation frequencies in a population are to remain unchanged, all of the following teria must be met the population must be Irge, there must be no mutation or gone flow, masing must be randon, and there must be no natural selection El Is a consequence of swarty...
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In the case of directional selection, if the advantageous allele (b) is recessive and a less...
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help 4.) Darwin's Theory of Natural Selection stated that: a.) At one time the earth held...
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BIOL 1020 Homework Evolution & Natural Selection 4 NATURAL SELECTION: 1. In your OWN words, explain what natural selection is. What is required? What is the result? 2. True or false? For natural selection to work, a population must have genetic variation. Explain your answer. 3. List three sources of genetic variation in a population. Identify which sources are most important for asexually reproducing organisms. Which method is most important for sexually reproducing organisms? 4. List three mechanisms which cause...
biology please help--gene pools
1. One of the important theoretical concepts in population genetics is that of genetic equilibrium, which the Aarge, randomly mating population, allele frequencies do not change from generation to generation frequencies in a population are to remain unchanged, all of the following teria must be met the population must be Irge, there must be no mutation or gone flow, masing must be randon, and there must be no natural selection El Is a consequence of swarty...
heterozygote disadvantage Natural selection is the process by which organisms with the best adapted phenotype are selected for by environmental conditions. anthropogenic events such as the use of DDT heterozygote advantage Allelic frequencies can change due to selection or they may change due to genetic drift. environmental conditions The process of natural selection relies on the presence of of a gene within a population. genetic drift Deleterious alleles may persist in the population particularly if they confer a single allele...
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