Genetic drift is most likely to be an important evolutionary force in___________________. a. small microbial populations...
Genetic drift is most likely to be an important evolutionary
force in___________________.
a. small microbial populations
b. microbial populationsthat are artificially established in the
laboratory
c. microbial populations that are infected with
bacteriophages
d. microbial populationsthat are isolated from the natural
environment
e. large microbial populations
Homework Answers
Option d
Genetic drift is much more likely in smaller population of organisms. When there is small population and many alleles exist any of the alleles can quickly become fixed or extinct in the population.
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Genetic drift is most likely to be an important evolutionary
force in___________________.
a. small microbial populations...
Genetic drift can be an important evolutionary process. This is due to the fact that (A...
Genetic drift can be an important evolutionary process. This is due to the fact that (A natural selection acting on the genetic variation of a large population B small isolated populations are unable to defend themselves from predators, therefore they loos genetic diversity. Natural selection, in this case, has less variation to work with. C when genetic drift is the only evolutionary process at work, one allele may be lost forever and the other may become fixed (100% frequency). D)...
Which of the following statements about genetic drift as an evolutionary factor is true? a. It...
Which of the following statements about genetic drift as an evolutionary factor is true? a. It is more potent in a population with small numbers than in a population with large numbers. b. It is responsible for the selection of mutations. c. It is connected to the movements of alleles between populations of a single species. d. Its strength is proportional to the size of a population: the larger the population, the greater the force. e. Both a and b
Select the option that contains three evolutionary forces a) natural selection, genetic drift, gene flow b)...
Select the option that contains three evolutionary forces a) natural selection, genetic drift, gene flow b) somatic cells, chromosomes, natural selection c) non-random mating, genomes, variation d) proteins, genetic drift, alleles e) natural selection, DDT resistance, environment
Q3.3. Recall the prediction: Allele frequencies change by genetic drift equally quickly in large populations and...
Q3.3. Recall the prediction: Allele frequencies change by genetic drift equally quickly in large populations and in small populations. Is this correct? Why or why not? Yes. Genetic drift is sampling error, and sampling error is unpredictable, no matter the population size. Yes. Small populations experience more sampling error, but large populations have more reproduction overall, leading to similar rates of allele frequency change. O No. In the ferret experiments, allele frequencies changed more quickly in the small populations than...
Which of the following is true about genetic drift? a) it only happens in small populations...
Which of the following is true about genetic drift? a) it only happens in small populations b) it decreases the genetic variability among populations c) it never results in allele fixation or loss d) it can cause the prevalence of deleterious alleles to drift up and down
1. Genetic drift is an important mechanism for maintaining genetic variation in populations. True False 2....
1. Genetic drift is an important mechanism for maintaining genetic variation in populations. True False 2. According to several studies (e.g., bacteriophage f1), most mutation are _______. A. lethal B. deleterious but not lethal C. approximately neutral D. beneficial 3. Most mutations occur in response to the adaptive needs of the organism. True False Can please answer all 3 questions ASAP. Thank you in advance!
Questino 7. How I genetic drift different from natural selection? A. Natural Selection occurs because some...
Questino 7. How I genetic drift different from natural selection? A. Natural Selection occurs because some alleles confer higher fitness, whereas genetic drift occurs because of sampling error. B. Natural selection has a stronger effect in large population, whereas genetic drift acts primarily in small populations. C. Natural selection is a mechanism of evoltion, whereas genetic drift is not a mechnaism but an outcome of evolution. D. Natrual selection tends to cause very rapid evolution whereas gentic drift tends to...
13. Which of the following is the only evolutionary process that consistently produces adaptation? a. Genetic...
13. Which of the following is the only evolutionary process that consistently produces adaptation? a. Genetic drift b. Natural selection c. Gene flow d. Mutations 14. Which of the following is NOT a possible result when isolated populations come into contact? a. Dispersal b. Stability c. Reinforcement d. Fusion e. New Species 15. What is greater than mutations in producing variation in diploids? a, transformation b. sexual recombination c. natural selection d. punctuated equilibrium e. conjugation 16. Which type of...
Which of the following are evolutionary forces that account for change in the genetic composition of...
Which of the following are evolutionary forces that account for change in the genetic composition of populations? a. natural selection b. antagonism c. symbiosis d. all of the above e. none of the above Select one: O A. A O B.B OC.C O D.D O E.E
Which of these is not an underlying assumption of the neutral theory? A genetic drift is...
Which of these is not an underlying assumption of the neutral theory? A genetic drift is the most important force at the DNA level B most changes in DNA that become fixed have no effect on fitness C purifying selection is rare D positive selection is rare
Genetic drift can be an important evolutionary process. This is due to the fact that (A natural selection acting on the genetic variation of a large population B small isolated populations are unable to defend themselves from predators, therefore they loos genetic diversity. Natural selection, in this case, has less variation to work with. C when genetic drift is the only evolutionary process at work, one allele may be lost forever and the other may become fixed (100% frequency). D)...
Q3.3. Recall the prediction: Allele frequencies change by genetic drift equally quickly in large populations and in small populations. Is this correct? Why or why not? Yes. Genetic drift is sampling error, and sampling error is unpredictable, no matter the population size. Yes. Small populations experience more sampling error, but large populations have more reproduction overall, leading to similar rates of allele frequency change. O No. In the ferret experiments, allele frequencies changed more quickly in the small populations than...
13. Which of the following is the only evolutionary process that consistently produces adaptation? a. Genetic drift b. Natural selection c. Gene flow d. Mutations 14. Which of the following is NOT a possible result when isolated populations come into contact? a. Dispersal b. Stability c. Reinforcement d. Fusion e. New Species 15. What is greater than mutations in producing variation in diploids? a, transformation b. sexual recombination c. natural selection d. punctuated equilibrium e. conjugation 16. Which type of...
Which of the following are evolutionary forces that account for change in the genetic composition of populations? a. natural selection b. antagonism c. symbiosis d. all of the above e. none of the above Select one: O A. A O B.B OC.C O D.D O E.E
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