Why does the strength of genetic drift depend on a large or small population?
Why does the strength of genetic drift depend on a large or small population?
Homework Answers
I believe the correct answer to be:
Genetic drift refers to the variation in the relative frequencies of alleles due to chance disappearence of a particular allele as the result of organism not reproducing or due to death. So if a population is large, the affect on frequencies of other alleles would not be higher but if the same happens to a small population, the removal of a single allele will drastically affects the relative frequencies of other alleles as the pool of alleles is smaller in small populations.
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Why does the strength of genetic drift depend on a large or
small population?
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 NOT a likely consequence of genetic drift in a small population?...
Which of the following is NOT a likely consequence of genetic drift in a small population? i) increase in frequency of both homozygotes at a locus ii) decrease in heterozygosity of a population iii) inbreeding depression iv) fluctuation in allele frequencies
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 all of the statements about genetic drift that are true. It can cause alleles to...
Select all of the statements about genetic drift that are true. It can cause alleles to be lost in a population by chance. Genetic drift causes allele frequencies to change because only the strongest individuals in a population are reproducing Its strength is proportional to the size of a population -the larger the population, the greater the force Smaller populations experience greater changes in allele frequency due to genetic drift than large populations. It is a random process with respect...
Which of the following does not change allele frequencies in a population? A. genetic drift B....
Which of the following does not change allele frequencies in a population? A. genetic drift B. mutation C. migration D. nonrandom mating E. natural selection
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)...
1. How would a scientist would recognize genetic drift, from a current population. Explain. 2. What...
1. How would a scientist would recognize genetic drift, from a current population. Explain. 2. What factors would prevent genetic drift, and explain why (Good description of factors)
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...
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
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
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...
Select all of the statements about genetic drift that are true. It can cause alleles to be lost in a population by chance. Genetic drift causes allele frequencies to change because only the strongest individuals in a population are reproducing Its strength is proportional to the size of a population -the larger the population, the greater the force Smaller populations experience greater changes in allele frequency due to genetic drift than large populations. It is a random process with respect...
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)...
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