346344
Statement A : Microbes are able to grow on new nutrient media due to natural selection. Statement B : Adaptive ability is inherited and has genetic basis.
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:
Both are correct.
BIOXII07:EVOLUTION
346345
Which one of the following is not a concept of Lamarck?
1 If an organ is used constantly it will continuously increase its size
2 Environmental pressure causes variation
3 Rate and survival of organism is different due to variation
4 Inheritance of acquired characters
Explanation:
Rate and survival of organism is different due to variation is not a concept of Lamarckism.
BIOXII07:EVOLUTION
346347
Variations during mutations of meiotic recombinations are
1 Random and directionless
2 Random and directional
3 Small and directional
4 Random, small and directional
Explanation:
Hugo de Vries (1901) put forward a theory of evolution, called mutation theory. The theory states that evolution is a jerky process where new varieties and species are formed by mutations (discontinuous variations) that function as raw material of evolution.Mutations appear all of a sudden. They become operational immediately. Mutations appear in all conceivable directions.
NCERT Exemplar
BIOXII07:EVOLUTION
346348
Darwin differed from Lamarck in his proposal that
1 Evolution leads to adaptation
2 Species are not fixed
3 Life on earth has a long evolutionary history
4 Inherent variations in the population are more important in evolution than variation acquired during individual lifetimes
Explanation:
Unlike Lamarck, who said that traits could develop and change during an animal's lifetime, Darwin believed that individuals were simply born with different traits and that these differences were mostly random.
346344
Statement A : Microbes are able to grow on new nutrient media due to natural selection. Statement B : Adaptive ability is inherited and has genetic basis.
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:
Both are correct.
BIOXII07:EVOLUTION
346345
Which one of the following is not a concept of Lamarck?
1 If an organ is used constantly it will continuously increase its size
2 Environmental pressure causes variation
3 Rate and survival of organism is different due to variation
4 Inheritance of acquired characters
Explanation:
Rate and survival of organism is different due to variation is not a concept of Lamarckism.
BIOXII07:EVOLUTION
346347
Variations during mutations of meiotic recombinations are
1 Random and directionless
2 Random and directional
3 Small and directional
4 Random, small and directional
Explanation:
Hugo de Vries (1901) put forward a theory of evolution, called mutation theory. The theory states that evolution is a jerky process where new varieties and species are formed by mutations (discontinuous variations) that function as raw material of evolution.Mutations appear all of a sudden. They become operational immediately. Mutations appear in all conceivable directions.
NCERT Exemplar
BIOXII07:EVOLUTION
346348
Darwin differed from Lamarck in his proposal that
1 Evolution leads to adaptation
2 Species are not fixed
3 Life on earth has a long evolutionary history
4 Inherent variations in the population are more important in evolution than variation acquired during individual lifetimes
Explanation:
Unlike Lamarck, who said that traits could develop and change during an animal's lifetime, Darwin believed that individuals were simply born with different traits and that these differences were mostly random.
346344
Statement A : Microbes are able to grow on new nutrient media due to natural selection. Statement B : Adaptive ability is inherited and has genetic basis.
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:
Both are correct.
BIOXII07:EVOLUTION
346345
Which one of the following is not a concept of Lamarck?
1 If an organ is used constantly it will continuously increase its size
2 Environmental pressure causes variation
3 Rate and survival of organism is different due to variation
4 Inheritance of acquired characters
Explanation:
Rate and survival of organism is different due to variation is not a concept of Lamarckism.
BIOXII07:EVOLUTION
346347
Variations during mutations of meiotic recombinations are
1 Random and directionless
2 Random and directional
3 Small and directional
4 Random, small and directional
Explanation:
Hugo de Vries (1901) put forward a theory of evolution, called mutation theory. The theory states that evolution is a jerky process where new varieties and species are formed by mutations (discontinuous variations) that function as raw material of evolution.Mutations appear all of a sudden. They become operational immediately. Mutations appear in all conceivable directions.
NCERT Exemplar
BIOXII07:EVOLUTION
346348
Darwin differed from Lamarck in his proposal that
1 Evolution leads to adaptation
2 Species are not fixed
3 Life on earth has a long evolutionary history
4 Inherent variations in the population are more important in evolution than variation acquired during individual lifetimes
Explanation:
Unlike Lamarck, who said that traits could develop and change during an animal's lifetime, Darwin believed that individuals were simply born with different traits and that these differences were mostly random.
346344
Statement A : Microbes are able to grow on new nutrient media due to natural selection. Statement B : Adaptive ability is inherited and has genetic basis.
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:
Both are correct.
BIOXII07:EVOLUTION
346345
Which one of the following is not a concept of Lamarck?
1 If an organ is used constantly it will continuously increase its size
2 Environmental pressure causes variation
3 Rate and survival of organism is different due to variation
4 Inheritance of acquired characters
Explanation:
Rate and survival of organism is different due to variation is not a concept of Lamarckism.
BIOXII07:EVOLUTION
346347
Variations during mutations of meiotic recombinations are
1 Random and directionless
2 Random and directional
3 Small and directional
4 Random, small and directional
Explanation:
Hugo de Vries (1901) put forward a theory of evolution, called mutation theory. The theory states that evolution is a jerky process where new varieties and species are formed by mutations (discontinuous variations) that function as raw material of evolution.Mutations appear all of a sudden. They become operational immediately. Mutations appear in all conceivable directions.
NCERT Exemplar
BIOXII07:EVOLUTION
346348
Darwin differed from Lamarck in his proposal that
1 Evolution leads to adaptation
2 Species are not fixed
3 Life on earth has a long evolutionary history
4 Inherent variations in the population are more important in evolution than variation acquired during individual lifetimes
Explanation:
Unlike Lamarck, who said that traits could develop and change during an animal's lifetime, Darwin believed that individuals were simply born with different traits and that these differences were mostly random.
