346518
Statement A : The introduction of new alleles into the local gene pool by interbreeding of migrating individuals with members of local population is called gene recombination. Statement B : If gene migration happens multiple times, it is called gene recombination.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
The introduction of new alleles into the local gene pool by interbreeding of migrating individuals with members of local population is called gene migration. If gene migration happens multiple times, it is called gene flow.
BIOXII07:EVOLUTION
346519
Fishermen use nets of a large mesh size to capture larger adult fish, leaving smaller adults. This would result in
1 Disruptive selection as more fish acquire peripheral character value at both ends of the distribution curve
2 Stabilizing selection as individuals with mean weight have maximum chance of survival
3 Directional selection leading to an increase in the mean weight
4 Directional selection leading to a decrease in the mean weight
Explanation:
Higher mortality of large adult fish (compared to small adult fish) leads to decreased reproductive success of larger fish. The mean size of the fish body would gradually decrease over generations. This is directional selection which eliminates one extreme phenotype from an array of phenotypes.
BIOXII07:EVOLUTION
346520
In disruptive type of natural selection
1 Homozygous as well as heterozygous character can be preferred
2 Homozygous character is preferred at one end
3 Heterozygous character is preferred
4 Homozygous characters are preferred at both ends
Explanation:
Disruptive selection is a type of natural selection that selects against the average individual in a population. The makeup of this type of population would show phenotypes (individuals with groups of traits) of both extremes but have very few individuals in the middle.
BIOXII07:EVOLUTION
346521
Natural selection where more individuals acquire specific character value other than the mean character value, leads to:
1 Directional change
2 Disruptive change
3 Random change
4 Stabilising change
Explanation:
In directional natural selection, more individuals acquire value other than the mean character value. It involves elimination of individuals at one extreme of the phenotypic distribution and the mean value gradually shifts in the othr direction. For example the evolution of long - necked giraffes from short - necked ancestors involved directional selection.
NEET - 2022
BIOXII07:EVOLUTION
346522
Which type of natural selection eliminates extreme individuals and maintains normal individuals?
1 Directional
2 Non-directional
3 Disruptive
4 Stabilising
Explanation:
Stabilizing selection is the opposite of disruptive selection. Instead of favoring individuals with extreme phenotypes, it favors the intermediate variants. Stabilizing selection tends to remove the more severe phenotypes, resulting in the reproductive success of the norm or average phenotypes.
346518
Statement A : The introduction of new alleles into the local gene pool by interbreeding of migrating individuals with members of local population is called gene recombination. Statement B : If gene migration happens multiple times, it is called gene recombination.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
The introduction of new alleles into the local gene pool by interbreeding of migrating individuals with members of local population is called gene migration. If gene migration happens multiple times, it is called gene flow.
BIOXII07:EVOLUTION
346519
Fishermen use nets of a large mesh size to capture larger adult fish, leaving smaller adults. This would result in
1 Disruptive selection as more fish acquire peripheral character value at both ends of the distribution curve
2 Stabilizing selection as individuals with mean weight have maximum chance of survival
3 Directional selection leading to an increase in the mean weight
4 Directional selection leading to a decrease in the mean weight
Explanation:
Higher mortality of large adult fish (compared to small adult fish) leads to decreased reproductive success of larger fish. The mean size of the fish body would gradually decrease over generations. This is directional selection which eliminates one extreme phenotype from an array of phenotypes.
BIOXII07:EVOLUTION
346520
In disruptive type of natural selection
1 Homozygous as well as heterozygous character can be preferred
2 Homozygous character is preferred at one end
3 Heterozygous character is preferred
4 Homozygous characters are preferred at both ends
Explanation:
Disruptive selection is a type of natural selection that selects against the average individual in a population. The makeup of this type of population would show phenotypes (individuals with groups of traits) of both extremes but have very few individuals in the middle.
BIOXII07:EVOLUTION
346521
Natural selection where more individuals acquire specific character value other than the mean character value, leads to:
1 Directional change
2 Disruptive change
3 Random change
4 Stabilising change
Explanation:
In directional natural selection, more individuals acquire value other than the mean character value. It involves elimination of individuals at one extreme of the phenotypic distribution and the mean value gradually shifts in the othr direction. For example the evolution of long - necked giraffes from short - necked ancestors involved directional selection.
NEET - 2022
BIOXII07:EVOLUTION
346522
Which type of natural selection eliminates extreme individuals and maintains normal individuals?
1 Directional
2 Non-directional
3 Disruptive
4 Stabilising
Explanation:
Stabilizing selection is the opposite of disruptive selection. Instead of favoring individuals with extreme phenotypes, it favors the intermediate variants. Stabilizing selection tends to remove the more severe phenotypes, resulting in the reproductive success of the norm or average phenotypes.
346518
Statement A : The introduction of new alleles into the local gene pool by interbreeding of migrating individuals with members of local population is called gene recombination. Statement B : If gene migration happens multiple times, it is called gene recombination.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
The introduction of new alleles into the local gene pool by interbreeding of migrating individuals with members of local population is called gene migration. If gene migration happens multiple times, it is called gene flow.
BIOXII07:EVOLUTION
346519
Fishermen use nets of a large mesh size to capture larger adult fish, leaving smaller adults. This would result in
1 Disruptive selection as more fish acquire peripheral character value at both ends of the distribution curve
2 Stabilizing selection as individuals with mean weight have maximum chance of survival
3 Directional selection leading to an increase in the mean weight
4 Directional selection leading to a decrease in the mean weight
Explanation:
Higher mortality of large adult fish (compared to small adult fish) leads to decreased reproductive success of larger fish. The mean size of the fish body would gradually decrease over generations. This is directional selection which eliminates one extreme phenotype from an array of phenotypes.
BIOXII07:EVOLUTION
346520
In disruptive type of natural selection
1 Homozygous as well as heterozygous character can be preferred
2 Homozygous character is preferred at one end
3 Heterozygous character is preferred
4 Homozygous characters are preferred at both ends
Explanation:
Disruptive selection is a type of natural selection that selects against the average individual in a population. The makeup of this type of population would show phenotypes (individuals with groups of traits) of both extremes but have very few individuals in the middle.
BIOXII07:EVOLUTION
346521
Natural selection where more individuals acquire specific character value other than the mean character value, leads to:
1 Directional change
2 Disruptive change
3 Random change
4 Stabilising change
Explanation:
In directional natural selection, more individuals acquire value other than the mean character value. It involves elimination of individuals at one extreme of the phenotypic distribution and the mean value gradually shifts in the othr direction. For example the evolution of long - necked giraffes from short - necked ancestors involved directional selection.
NEET - 2022
BIOXII07:EVOLUTION
346522
Which type of natural selection eliminates extreme individuals and maintains normal individuals?
1 Directional
2 Non-directional
3 Disruptive
4 Stabilising
Explanation:
Stabilizing selection is the opposite of disruptive selection. Instead of favoring individuals with extreme phenotypes, it favors the intermediate variants. Stabilizing selection tends to remove the more severe phenotypes, resulting in the reproductive success of the norm or average phenotypes.
346518
Statement A : The introduction of new alleles into the local gene pool by interbreeding of migrating individuals with members of local population is called gene recombination. Statement B : If gene migration happens multiple times, it is called gene recombination.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
The introduction of new alleles into the local gene pool by interbreeding of migrating individuals with members of local population is called gene migration. If gene migration happens multiple times, it is called gene flow.
BIOXII07:EVOLUTION
346519
Fishermen use nets of a large mesh size to capture larger adult fish, leaving smaller adults. This would result in
1 Disruptive selection as more fish acquire peripheral character value at both ends of the distribution curve
2 Stabilizing selection as individuals with mean weight have maximum chance of survival
3 Directional selection leading to an increase in the mean weight
4 Directional selection leading to a decrease in the mean weight
Explanation:
Higher mortality of large adult fish (compared to small adult fish) leads to decreased reproductive success of larger fish. The mean size of the fish body would gradually decrease over generations. This is directional selection which eliminates one extreme phenotype from an array of phenotypes.
BIOXII07:EVOLUTION
346520
In disruptive type of natural selection
1 Homozygous as well as heterozygous character can be preferred
2 Homozygous character is preferred at one end
3 Heterozygous character is preferred
4 Homozygous characters are preferred at both ends
Explanation:
Disruptive selection is a type of natural selection that selects against the average individual in a population. The makeup of this type of population would show phenotypes (individuals with groups of traits) of both extremes but have very few individuals in the middle.
BIOXII07:EVOLUTION
346521
Natural selection where more individuals acquire specific character value other than the mean character value, leads to:
1 Directional change
2 Disruptive change
3 Random change
4 Stabilising change
Explanation:
In directional natural selection, more individuals acquire value other than the mean character value. It involves elimination of individuals at one extreme of the phenotypic distribution and the mean value gradually shifts in the othr direction. For example the evolution of long - necked giraffes from short - necked ancestors involved directional selection.
NEET - 2022
BIOXII07:EVOLUTION
346522
Which type of natural selection eliminates extreme individuals and maintains normal individuals?
1 Directional
2 Non-directional
3 Disruptive
4 Stabilising
Explanation:
Stabilizing selection is the opposite of disruptive selection. Instead of favoring individuals with extreme phenotypes, it favors the intermediate variants. Stabilizing selection tends to remove the more severe phenotypes, resulting in the reproductive success of the norm or average phenotypes.
346518
Statement A : The introduction of new alleles into the local gene pool by interbreeding of migrating individuals with members of local population is called gene recombination. Statement B : If gene migration happens multiple times, it is called gene recombination.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
The introduction of new alleles into the local gene pool by interbreeding of migrating individuals with members of local population is called gene migration. If gene migration happens multiple times, it is called gene flow.
BIOXII07:EVOLUTION
346519
Fishermen use nets of a large mesh size to capture larger adult fish, leaving smaller adults. This would result in
1 Disruptive selection as more fish acquire peripheral character value at both ends of the distribution curve
2 Stabilizing selection as individuals with mean weight have maximum chance of survival
3 Directional selection leading to an increase in the mean weight
4 Directional selection leading to a decrease in the mean weight
Explanation:
Higher mortality of large adult fish (compared to small adult fish) leads to decreased reproductive success of larger fish. The mean size of the fish body would gradually decrease over generations. This is directional selection which eliminates one extreme phenotype from an array of phenotypes.
BIOXII07:EVOLUTION
346520
In disruptive type of natural selection
1 Homozygous as well as heterozygous character can be preferred
2 Homozygous character is preferred at one end
3 Heterozygous character is preferred
4 Homozygous characters are preferred at both ends
Explanation:
Disruptive selection is a type of natural selection that selects against the average individual in a population. The makeup of this type of population would show phenotypes (individuals with groups of traits) of both extremes but have very few individuals in the middle.
BIOXII07:EVOLUTION
346521
Natural selection where more individuals acquire specific character value other than the mean character value, leads to:
1 Directional change
2 Disruptive change
3 Random change
4 Stabilising change
Explanation:
In directional natural selection, more individuals acquire value other than the mean character value. It involves elimination of individuals at one extreme of the phenotypic distribution and the mean value gradually shifts in the othr direction. For example the evolution of long - necked giraffes from short - necked ancestors involved directional selection.
NEET - 2022
BIOXII07:EVOLUTION
346522
Which type of natural selection eliminates extreme individuals and maintains normal individuals?
1 Directional
2 Non-directional
3 Disruptive
4 Stabilising
Explanation:
Stabilizing selection is the opposite of disruptive selection. Instead of favoring individuals with extreme phenotypes, it favors the intermediate variants. Stabilizing selection tends to remove the more severe phenotypes, resulting in the reproductive success of the norm or average phenotypes.
