The homologous organs are those that show similarity in

1. size

2. origin

3. function

4. appearance 

Subtopic:  Concept of Organic Evolution: Evidence: 1 | Concept of Organic Evolution: Evidence |
 72%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

The occurrence of endemic species in South America and Australia is due to  

1. Extinction of these species from other regions

2. Continental separation

3. No terrestrial route to these places

4. Retrogressive evolution 

Subtopic:  Concept of Speciation |
 73%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Genetic drift is change of 

1. gene frequency in same generation 

2. appearance of recessive genes

3. gene frequency from one generation to next 

4. None of the above

Subtopic:  Sources of Variation: 2 | Sources of Variation |
 60%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

Thorn of Bougainvillea and tendril of Cucurbita are examples of  
1. analogous organs

2. homologous organs

3. vestigial organs

4. retrogressive evolution 

Subtopic:  Concept of Organic Evolution: Evidence: 1 | Concept of Organic Evolution: Evidence |
 84%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Adaptive radiation refers to

1. adaptations due to geographical isolation 

2. evolution of different species from a common ancestor

3. migration of members of a species to different geographical areas

4. power of adaptation in an individual to a variety of environments

Subtopic:  Concept of Organic Evolution: Evidence: 2 | Concept of Organic Evolution: Evidence |
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Random genetic drift in a population probably results from   

1. large population size

2. highly genetically variable individuals

3. interbreeding within small isolated population 

4. constant low mutation rate

Subtopic:  Sources of Variation: 2 | Sources of Variation |
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

advertisementadvertisement

Which one of the following features is closely related with the evolution of humans?

1. Loss of tail                         

2. Shortening of jaws

3. Binocular vision                   

4. Flat nails

Subtopic:  Introduction to Human Evolution |
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

Homo sapiens evolved during

1. Pleistocene 

2. Oligocene

3. Pliocene 

4. Miocene

Subtopic:  Evolution of Homo Sapiens |
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

Identify the correct sequence in which the following substances have appeared during the course of evolution of life on earth.

1. glucose, amino acids, nucleic acids, proteins

2. ammonia, amino acids, proteins, nucleic acids

3. water, amino acids, nucleic acids, enzymes

4. amino acids, ammonia, phosphates, nucleic acids

Subtopic:  Origin of Life: Chemical Evolution: 1 | Origin of Life |
 51%
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

advertisementadvertisement

In which condition the gene ratio remains constant for any species?

1. Sexual selection

2. Random mating

3. Mutation

4. Gene flow

Subtopic:  Hardy Weinberg Law: 1 | Hardy Weinberg Law |
 52%
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints