185107
Group of genes present in an ecosystem is called as :
1 genome
2 gene pool
3 genotype
4 phenotype
Explanation:
Gene pool :- A gene pool refers to the combination of all the genes (including allele) present in a reproducing population or species. The genome refers to the complete set of an organism's genetic material, including all its genes and non-coding sequences. It contain the entire hereditary, information. - Phenotype is the set of observable characteristics or traits of an organism. - Genotype is the genetic makeup of an individual call or organism that determines or contributes to its phenotype.
Rajasthan PMT-1998
Evolution
185112
For natural selection, the important factor is
1 disuse
2 variation
3 catastrophic
4 special creation
Explanation:
Variation :- For natural selection, important factor is variation. Variation means that some individuals have traits better suited to the environment than other. This process can cause population to change over time, leading to the evolution of new species.
CG PMT-2011
Evolution
185115
Which of the following theories was not given by Darwin?
1 Struggle for existence
2 Natural selection
3 Survival of the fittest
4 Genetic drift
Explanation:
Genetic drift :- Genetic drift is a mechanism of evolution in which allele frequencies of a population change over generations due to chance. Genetic drift is non-directional and non-adaptive. i.e. the genes of a small population changes irrespective of selective advantages or disadvantages. When migration of section of a population to another place and population occurs, new genes are added to new population causing genetic drift genetic equilibrium. Genetic drift is at the core of the shifting balance theory of evolution coined by Sewall Wright.
AFMC-2001
Evolution
185116
In Hardy-Weinberg equation, the frequency of heterozygous individual is represented by
1 \(\mathrm{P}^{2}\)
2 \(2 \mathrm{pq}\)
3 \(\mathrm{pq}\)
4 \(q^{2}\)
Explanation:
The frequency of heterozygous individual in the Hardy-Weinberg equation is represented by \(2 \mathrm{pq}\). The Hardy-Weinberg equation is a mathematical equation that describes the expected frequencies of genotypes in a population under ideal conditions. The equation is, \(\mathrm{p}^{2}+2 \mathrm{pq}+\mathrm{q}^{2}\). Where \(p^{2}\), represents the frequency of homozygous dominant individuals (AA), \(q^{2}\) represents the frequency of homozygous recessive individual (aa), while \(2 \mathrm{pq}\) is the frequency of heterozygous \((\mathrm{Aa})\) individuals.
NEET-2016 Phase-II
Evolution
185119
Which of the following is not true for a species
1 Members of a species can interbreed
2 Variations occur among members of a species
3 Gene flow does not occur between the populations of a species
4 Each species is reproductively isolated from every other species.
Explanation:
Gene flow does not occur between the population of a species is incorrect because gene flow occurs between the populations of a species. Gene flow is the movement of genes from one population to another. It can occur through a variety of mechanisms, such as migration, dispersal of seeds or pollen and hybridization. - Members of a species can interbreed and produce fertile offspring. - Variations occur among members of a species due to genetic recombination and mutation. - Each species is reproductively isolated from every other species, means that members of different species cannot interbreed and produce fertile offspring.
185107
Group of genes present in an ecosystem is called as :
1 genome
2 gene pool
3 genotype
4 phenotype
Explanation:
Gene pool :- A gene pool refers to the combination of all the genes (including allele) present in a reproducing population or species. The genome refers to the complete set of an organism's genetic material, including all its genes and non-coding sequences. It contain the entire hereditary, information. - Phenotype is the set of observable characteristics or traits of an organism. - Genotype is the genetic makeup of an individual call or organism that determines or contributes to its phenotype.
Rajasthan PMT-1998
Evolution
185112
For natural selection, the important factor is
1 disuse
2 variation
3 catastrophic
4 special creation
Explanation:
Variation :- For natural selection, important factor is variation. Variation means that some individuals have traits better suited to the environment than other. This process can cause population to change over time, leading to the evolution of new species.
CG PMT-2011
Evolution
185115
Which of the following theories was not given by Darwin?
1 Struggle for existence
2 Natural selection
3 Survival of the fittest
4 Genetic drift
Explanation:
Genetic drift :- Genetic drift is a mechanism of evolution in which allele frequencies of a population change over generations due to chance. Genetic drift is non-directional and non-adaptive. i.e. the genes of a small population changes irrespective of selective advantages or disadvantages. When migration of section of a population to another place and population occurs, new genes are added to new population causing genetic drift genetic equilibrium. Genetic drift is at the core of the shifting balance theory of evolution coined by Sewall Wright.
AFMC-2001
Evolution
185116
In Hardy-Weinberg equation, the frequency of heterozygous individual is represented by
1 \(\mathrm{P}^{2}\)
2 \(2 \mathrm{pq}\)
3 \(\mathrm{pq}\)
4 \(q^{2}\)
Explanation:
The frequency of heterozygous individual in the Hardy-Weinberg equation is represented by \(2 \mathrm{pq}\). The Hardy-Weinberg equation is a mathematical equation that describes the expected frequencies of genotypes in a population under ideal conditions. The equation is, \(\mathrm{p}^{2}+2 \mathrm{pq}+\mathrm{q}^{2}\). Where \(p^{2}\), represents the frequency of homozygous dominant individuals (AA), \(q^{2}\) represents the frequency of homozygous recessive individual (aa), while \(2 \mathrm{pq}\) is the frequency of heterozygous \((\mathrm{Aa})\) individuals.
NEET-2016 Phase-II
Evolution
185119
Which of the following is not true for a species
1 Members of a species can interbreed
2 Variations occur among members of a species
3 Gene flow does not occur between the populations of a species
4 Each species is reproductively isolated from every other species.
Explanation:
Gene flow does not occur between the population of a species is incorrect because gene flow occurs between the populations of a species. Gene flow is the movement of genes from one population to another. It can occur through a variety of mechanisms, such as migration, dispersal of seeds or pollen and hybridization. - Members of a species can interbreed and produce fertile offspring. - Variations occur among members of a species due to genetic recombination and mutation. - Each species is reproductively isolated from every other species, means that members of different species cannot interbreed and produce fertile offspring.
185107
Group of genes present in an ecosystem is called as :
1 genome
2 gene pool
3 genotype
4 phenotype
Explanation:
Gene pool :- A gene pool refers to the combination of all the genes (including allele) present in a reproducing population or species. The genome refers to the complete set of an organism's genetic material, including all its genes and non-coding sequences. It contain the entire hereditary, information. - Phenotype is the set of observable characteristics or traits of an organism. - Genotype is the genetic makeup of an individual call or organism that determines or contributes to its phenotype.
Rajasthan PMT-1998
Evolution
185112
For natural selection, the important factor is
1 disuse
2 variation
3 catastrophic
4 special creation
Explanation:
Variation :- For natural selection, important factor is variation. Variation means that some individuals have traits better suited to the environment than other. This process can cause population to change over time, leading to the evolution of new species.
CG PMT-2011
Evolution
185115
Which of the following theories was not given by Darwin?
1 Struggle for existence
2 Natural selection
3 Survival of the fittest
4 Genetic drift
Explanation:
Genetic drift :- Genetic drift is a mechanism of evolution in which allele frequencies of a population change over generations due to chance. Genetic drift is non-directional and non-adaptive. i.e. the genes of a small population changes irrespective of selective advantages or disadvantages. When migration of section of a population to another place and population occurs, new genes are added to new population causing genetic drift genetic equilibrium. Genetic drift is at the core of the shifting balance theory of evolution coined by Sewall Wright.
AFMC-2001
Evolution
185116
In Hardy-Weinberg equation, the frequency of heterozygous individual is represented by
1 \(\mathrm{P}^{2}\)
2 \(2 \mathrm{pq}\)
3 \(\mathrm{pq}\)
4 \(q^{2}\)
Explanation:
The frequency of heterozygous individual in the Hardy-Weinberg equation is represented by \(2 \mathrm{pq}\). The Hardy-Weinberg equation is a mathematical equation that describes the expected frequencies of genotypes in a population under ideal conditions. The equation is, \(\mathrm{p}^{2}+2 \mathrm{pq}+\mathrm{q}^{2}\). Where \(p^{2}\), represents the frequency of homozygous dominant individuals (AA), \(q^{2}\) represents the frequency of homozygous recessive individual (aa), while \(2 \mathrm{pq}\) is the frequency of heterozygous \((\mathrm{Aa})\) individuals.
NEET-2016 Phase-II
Evolution
185119
Which of the following is not true for a species
1 Members of a species can interbreed
2 Variations occur among members of a species
3 Gene flow does not occur between the populations of a species
4 Each species is reproductively isolated from every other species.
Explanation:
Gene flow does not occur between the population of a species is incorrect because gene flow occurs between the populations of a species. Gene flow is the movement of genes from one population to another. It can occur through a variety of mechanisms, such as migration, dispersal of seeds or pollen and hybridization. - Members of a species can interbreed and produce fertile offspring. - Variations occur among members of a species due to genetic recombination and mutation. - Each species is reproductively isolated from every other species, means that members of different species cannot interbreed and produce fertile offspring.
185107
Group of genes present in an ecosystem is called as :
1 genome
2 gene pool
3 genotype
4 phenotype
Explanation:
Gene pool :- A gene pool refers to the combination of all the genes (including allele) present in a reproducing population or species. The genome refers to the complete set of an organism's genetic material, including all its genes and non-coding sequences. It contain the entire hereditary, information. - Phenotype is the set of observable characteristics or traits of an organism. - Genotype is the genetic makeup of an individual call or organism that determines or contributes to its phenotype.
Rajasthan PMT-1998
Evolution
185112
For natural selection, the important factor is
1 disuse
2 variation
3 catastrophic
4 special creation
Explanation:
Variation :- For natural selection, important factor is variation. Variation means that some individuals have traits better suited to the environment than other. This process can cause population to change over time, leading to the evolution of new species.
CG PMT-2011
Evolution
185115
Which of the following theories was not given by Darwin?
1 Struggle for existence
2 Natural selection
3 Survival of the fittest
4 Genetic drift
Explanation:
Genetic drift :- Genetic drift is a mechanism of evolution in which allele frequencies of a population change over generations due to chance. Genetic drift is non-directional and non-adaptive. i.e. the genes of a small population changes irrespective of selective advantages or disadvantages. When migration of section of a population to another place and population occurs, new genes are added to new population causing genetic drift genetic equilibrium. Genetic drift is at the core of the shifting balance theory of evolution coined by Sewall Wright.
AFMC-2001
Evolution
185116
In Hardy-Weinberg equation, the frequency of heterozygous individual is represented by
1 \(\mathrm{P}^{2}\)
2 \(2 \mathrm{pq}\)
3 \(\mathrm{pq}\)
4 \(q^{2}\)
Explanation:
The frequency of heterozygous individual in the Hardy-Weinberg equation is represented by \(2 \mathrm{pq}\). The Hardy-Weinberg equation is a mathematical equation that describes the expected frequencies of genotypes in a population under ideal conditions. The equation is, \(\mathrm{p}^{2}+2 \mathrm{pq}+\mathrm{q}^{2}\). Where \(p^{2}\), represents the frequency of homozygous dominant individuals (AA), \(q^{2}\) represents the frequency of homozygous recessive individual (aa), while \(2 \mathrm{pq}\) is the frequency of heterozygous \((\mathrm{Aa})\) individuals.
NEET-2016 Phase-II
Evolution
185119
Which of the following is not true for a species
1 Members of a species can interbreed
2 Variations occur among members of a species
3 Gene flow does not occur between the populations of a species
4 Each species is reproductively isolated from every other species.
Explanation:
Gene flow does not occur between the population of a species is incorrect because gene flow occurs between the populations of a species. Gene flow is the movement of genes from one population to another. It can occur through a variety of mechanisms, such as migration, dispersal of seeds or pollen and hybridization. - Members of a species can interbreed and produce fertile offspring. - Variations occur among members of a species due to genetic recombination and mutation. - Each species is reproductively isolated from every other species, means that members of different species cannot interbreed and produce fertile offspring.
185107
Group of genes present in an ecosystem is called as :
1 genome
2 gene pool
3 genotype
4 phenotype
Explanation:
Gene pool :- A gene pool refers to the combination of all the genes (including allele) present in a reproducing population or species. The genome refers to the complete set of an organism's genetic material, including all its genes and non-coding sequences. It contain the entire hereditary, information. - Phenotype is the set of observable characteristics or traits of an organism. - Genotype is the genetic makeup of an individual call or organism that determines or contributes to its phenotype.
Rajasthan PMT-1998
Evolution
185112
For natural selection, the important factor is
1 disuse
2 variation
3 catastrophic
4 special creation
Explanation:
Variation :- For natural selection, important factor is variation. Variation means that some individuals have traits better suited to the environment than other. This process can cause population to change over time, leading to the evolution of new species.
CG PMT-2011
Evolution
185115
Which of the following theories was not given by Darwin?
1 Struggle for existence
2 Natural selection
3 Survival of the fittest
4 Genetic drift
Explanation:
Genetic drift :- Genetic drift is a mechanism of evolution in which allele frequencies of a population change over generations due to chance. Genetic drift is non-directional and non-adaptive. i.e. the genes of a small population changes irrespective of selective advantages or disadvantages. When migration of section of a population to another place and population occurs, new genes are added to new population causing genetic drift genetic equilibrium. Genetic drift is at the core of the shifting balance theory of evolution coined by Sewall Wright.
AFMC-2001
Evolution
185116
In Hardy-Weinberg equation, the frequency of heterozygous individual is represented by
1 \(\mathrm{P}^{2}\)
2 \(2 \mathrm{pq}\)
3 \(\mathrm{pq}\)
4 \(q^{2}\)
Explanation:
The frequency of heterozygous individual in the Hardy-Weinberg equation is represented by \(2 \mathrm{pq}\). The Hardy-Weinberg equation is a mathematical equation that describes the expected frequencies of genotypes in a population under ideal conditions. The equation is, \(\mathrm{p}^{2}+2 \mathrm{pq}+\mathrm{q}^{2}\). Where \(p^{2}\), represents the frequency of homozygous dominant individuals (AA), \(q^{2}\) represents the frequency of homozygous recessive individual (aa), while \(2 \mathrm{pq}\) is the frequency of heterozygous \((\mathrm{Aa})\) individuals.
NEET-2016 Phase-II
Evolution
185119
Which of the following is not true for a species
1 Members of a species can interbreed
2 Variations occur among members of a species
3 Gene flow does not occur between the populations of a species
4 Each species is reproductively isolated from every other species.
Explanation:
Gene flow does not occur between the population of a species is incorrect because gene flow occurs between the populations of a species. Gene flow is the movement of genes from one population to another. It can occur through a variety of mechanisms, such as migration, dispersal of seeds or pollen and hybridization. - Members of a species can interbreed and produce fertile offspring. - Variations occur among members of a species due to genetic recombination and mutation. - Each species is reproductively isolated from every other species, means that members of different species cannot interbreed and produce fertile offspring.
