NEET Exam > NEET Test > Biology Class 12 > Test: Mechanism of Evolution - NEET MCQ

Mechanism of Evolution - Free MCQ Practice Test with solutions, NEET Biology

MCQ Practice Test & Solutions: Test: Mechanism of Evolution (5 Questions)

You can prepare effectively for NEET Biology Class 12 with this dedicated MCQ Practice Test (available with solutions) on the important topic of "Test: Mechanism of Evolution". These 5 questions have been designed by the experts with the latest curriculum of NEET 2026, to help you master the concept.

Test Highlights:

- Format: Multiple Choice Questions (MCQ)
- Duration: 5 minutes
- Number of Questions: 5

Test: Mechanism of Evolution - Question 1

Hugo de Vries did an experiment on which plant to prove mutation theory?

A.
Morning primrose
B.
Evening primrose
C.
Night primrose
D.
Pea pant

Detailed Solution: Question 1

Hugo de Vries proved mutation theory by doing experiments on Oenothera lamarckian, also known as evening primrose.
It was from this plant; he came up with the observations.
It is a complex heterozygous plant with a chromosomal aberration.

Topic in NCERT: MECHANISM OF EVOLUTION

Line in NCERT: "In the first decade of twentieth century, Hugo deVries based on his work on evening primrose brought forth the idea of mutations - large difference arising suddenly in that differ from other breeds."

Test: Mechanism of Evolution - Question 2

_______ is termed as single-step large mutation.

A.
Separation
B.
Anti mutation
C.
Saltation
D.
Infinite mutation

Detailed Solution: Question 2

Single-step that causes large mutation is called saltation.
It is called as such because the mutation occurs suddenly and abruptly that leads to evolution in large scale.
Hugo de Vries used this term against Darwin’s theory of evolution.

Topic in NCERT: MECHANISM OF EVOLUTION

Line in NCERT: "Hugo deVries believed mutation caused speciation and hence called it saltation (single step large mutation)."

Test: Mechanism of Evolution - Question 3

How do the fundamental views on evolutionary mechanisms differ between Darwin's theory of natural selection and deVries' mutation theory in terms of the nature of variations?

A. Both theories agree on the gradual nature of evolutionary changes.
B. Darwin’s variations are small and directional, while deVries' mutations are large and random.
C. DeVries emphasized natural selection as the driving force, whereas Darwin focused on random genetic mutations.
D. Both theories suggest that speciation occurs through large, sudden changes.

Detailed Solution: Question 3

Darwin's theory of natural selection is based on the accumulation of small, incremental, and directional variations that gradually lead to species adaptation and evolution. In contrast, Hugo deVries' mutation theory argues that evolution is driven by large, sudden, and random mutations that result in new species—a process that does not necessarily follow a specific direction as Darwin's variations do. This fundamental difference highlights the contrasting views on the mechanisms driving evolution and speciation between the two theorists.

Test: Mechanism of Evolution - Question 4

What concept did Hugo de Vries introduce based on his work with evening primrose?

A.
Natural selection
B.
Genetic drift
C.
Mutations
D.
Mendelian inheritance

Detailed Solution: Question 4

Hugo de Vries's research on evening primrose led him to propose that mutations are a key factor in evolution, contrasting with Darwin's emphasis on gradual changes.

Test: Mechanism of Evolution - Question 5

How did Darwin's view of evolution differ from that of de Vries?

A.
Darwin believed in gradual evolution, while de Vries believed in sudden large mutations.
B.
Darwin focused on the role of mutations, while de Vries emphasized natural selection.
C.
Darwin's theory was based on Mendelian genetics, while de Vries rejected it entirely.
D.
Darwin proposed that evolution is random, while de Vries argued it is directed.

Detailed Solution: Question 5

This highlights the fundamental difference in their theories, where Darwin's gradualism contrasts with de Vries's saltationism.

Mechanism of Evolution - Free MCQ Practice Test with solutions, NEET Biology

MCQ Practice Test & Solutions: Test: Mechanism of Evolution (5 Questions)

Hugo de Vries did an experiment on which plant to prove mutation theory?

_______ is termed as single-step large mutation.

How do the fundamental views on evolutionary mechanisms differ between Darwin's theory of natural selection and deVries' mutation theory in terms of the nature of variations?

What concept did Hugo de Vries introduce based on his work with evening primrose?

How did Darwin's view of evolution differ from that of de Vries?

Biology Class 12

Biology Class 12

Top Courses for NEET

Schools

Competitive Exams

International Exams

Quick Links

About this NEET Practice Test

Explore more NEET Study Resources