Biology
General
Easy
Question
Natural selection can lead to …A… in which more individuals acquire mean character value, …B…. more in which individuals acquire value other than the mean character value and …C… in which more individuals acquire peripheral character value at both ends of the distribution curve
Choose the correct options for A,B and C to complete the given statement with reference to NCERT text book
- A-directional changes, B-stabilising, C-disruption
- A-stabilisation, B-directional changes, C-disruption
- A-stabilisation, B-disruption, C-directional changes
- A-disruption, B-directional changes, C-stabilising
The correct answer is: A-stabilisation, B-directional changes, C-disruption
A-Stabilisation, B-Directional changes, C-Disruptive
Related Questions to study
Biology
All the existing life forms share …A… and share …B… ancestors. The geological history of earth closely correlates with …C… history of earth.
Choose the right option for A,B and C to complete the given statement with reference to NCERT text book
All the existing life forms share …A… and share …B… ancestors. The geological history of earth closely correlates with …C… history of earth.
Choose the right option for A,B and C to complete the given statement with reference to NCERT text book
BiologyGeneral
Biology
Mutational theory of evolution was given by
Mutational theory of evolution was given by
BiologyGeneral
Biology
existed in
existed in
BiologyGeneral
Biology
In the origin of life, microspheres are most primitive protobiont, which have a membrane of
In the origin of life, microspheres are most primitive protobiont, which have a membrane of
BiologyGeneral
Biology
Amoug the human ancestors, the brain size was more than 1000 cc in
Amoug the human ancestors, the brain size was more than 1000 cc in
BiologyGeneral
Biology
Prehistoric cave art developed about …A… years ago. Agriculture came around …B… years back and human settlements started. Choose an appropriate option for A and B to complete the given NCERT statement
Prehistoric cave art developed about …A… years ago. Agriculture came around …B… years back and human settlements started. Choose an appropriate option for A and B to complete the given NCERT statement
BiologyGeneral
Biology
A brief reduction in size of a population, due to natural calamities, usually leads to random genetic drift’. For this statement, identify the correct example from the following.
A brief reduction in size of a population, due to natural calamities, usually leads to random genetic drift’. For this statement, identify the correct example from the following.
BiologyGeneral
Biology
The natural selection that acts against change in the form and keeps the population constant through the time is
The natural selection that acts against change in the form and keeps the population constant through the time is
BiologyGeneral
Biology
is also known as
is also known as
BiologyGeneral
Biology
Tendrils in plants are an example of
Tendrils in plants are an example of
BiologyGeneral
Biology
Hugo de Vries based on his work on …A… brought forth the idea of …B…, large difference arising suddenly in a population. He believed that it is mutation which causes evolution and not the …C… that Darwin talked about. Mutations are random and …D…, while Darwinian variations are small and …E…
Choose the correct option for A,B,C,D and E to complete the given statement
Hugo de Vries based on his work on …A… brought forth the idea of …B…, large difference arising suddenly in a population. He believed that it is mutation which causes evolution and not the …C… that Darwin talked about. Mutations are random and …D…, while Darwinian variations are small and …E…
Choose the correct option for A,B,C,D and E to complete the given statement
BiologyGeneral
Biology
Which of the following statements correctly defines the phenomenon of genetic drift?
I. Random change in gene allele frequency
II. Occur by chance
III. It is directional
IV. Causes elimination of certain alleles
V. Causes fixation of alleles
The correct combination is
Which of the following statements correctly defines the phenomenon of genetic drift?
I. Random change in gene allele frequency
II. Occur by chance
III. It is directional
IV. Causes elimination of certain alleles
V. Causes fixation of alleles
The correct combination is
BiologyGeneral
Biology
Which of the following statements regarding the evolution of plants and animals is/are correct?
I. Amphibians evolved into reptiles
II. Fish with stout and strong fins could move on land and go back to water. This was about 350 million years ago
III. Giants ferns fell to form wall deposits slowly
IV. About 65 million years ago dinosaurs died out
V. 
is the connection link between birds and reptiles
The correct combination is
Which of the following statements regarding the evolution of plants and animals is/are correct?
I. Amphibians evolved into reptiles
II. Fish with stout and strong fins could move on land and go back to water. This was about 350 million years ago
III. Giants ferns fell to form wall deposits slowly
IV. About 65 million years ago dinosaurs died out
V. is the connection link between birds and reptiles
The correct combination is
BiologyGeneral
Biology
The variation in the natural selection is on, it is due to the random mutations. What does this imply about the natural selection?
The variation in the natural selection is on, it is due to the random mutations. What does this imply about the natural selection?
BiologyGeneral
Biology
Two nucleotide sequences found in two different species are exactly the same. This suggests that these species
Two nucleotide sequences found in two different species are exactly the same. This suggests that these species
BiologyGeneral
