NEET (UG)

Practice Test 1 — Evolution

12 questions • 18 minutes • auto-graded with full solutions

⏱ 18:00

0 / 12 answered

[object Object]

0 / 12

0Correct

0Wrong

0Skipped

0:00Time used

Back to Study

Section A — MCQ (Single Correct)

Question 1

The chemical evolution theory was proposed by:

Solution: Oparin and Haldane proposed chemical evolution.

Question 2

Miller and Urey's experiment simulated lightning using:

Solution: Electric sparks mimicked lightning in the early atmosphere.

Question 3

Survival of the fittest is central to the theory of:

Solution: Darwin's natural selection — survival of the fittest.

Question 4

Analogous organs are a result of:

Solution: Analogy results from convergent evolution.

Question 5

The functional unit example of vestigial organs in humans is the:

Solution: The vermiform appendix is vestigial.

Question 6

At Hardy–Weinberg equilibrium, allele frequencies:

Solution: They remain constant — no evolution.

Question 7

The peppered moth example demonstrates:

Solution: Industrial melanism = natural selection.

Question 8

Darwin's finches are an example of:

Solution: They show adaptive radiation from a common ancestor.

Section B — Assertion & Reason

Question 9

A: The forelimbs of a whale and a bat are homologous organs.
R: They share the same basic skeletal plan inherited from a common ancestor, though used for different functions.

Solution: Same plan from a common ancestor is the definition of homology — R explains A.

Question 10

A: Genetic drift has a greater effect in small populations.
R: Random changes in allele frequency have a larger relative impact when the number of individuals is small.

Solution: Random sampling matters more in small populations — R explains A.

Question 11

A: Lamarck's theory of inheritance of acquired characters is not accepted today.
R: Characters acquired during an individual's lifetime are not passed into the germ cells, so they are not inherited.

Solution: Acquired traits not entering the germ line is exactly why Lamarckism is rejected — R explains A.

Question 12

A: The Miller–Urey experiment supported the idea of chemical evolution.
R: It showed that organic molecules like amino acids can form from inorganic gases under early-Earth conditions.

Solution: Forming organic molecules from inorganic gases is exactly the support for chemical evolution — R explains A.