🅰️ ASSERTION–REASON (A/R) MCQs
(Used standard options A–D pattern as in CBSE/JKBOSE)
Options (Same for ALL A/R questions):
A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B. Both Assertion and Reason are true but Reason is NOT the correct explanation
C. Assertion is true but Reason is false
D. Assertion is false but Reason is true
AR-1
Assertion (A): Sexual reproduction results in greater variation among offspring.
Reason (R): It involves the combination of DNA from two different individuals.
Answer: A
âś” Both are true and Reason correctly explains Assertion.
AR-2
Assertion: Asexual reproduction produces offspring that are very similar.
Reason: Only one parent contributes genetic material.
Answer: A
AR-3
Assertion: Variations are essential for the survival of a species.
Reason: Environment selects organisms with useful variations.
Answer: A
AR-4
Assertion: Mendel is known as the father of genetics.
Reason: He proposed the theory of natural selection.
Answer: C
âś” Mendel studied inheritance; natural selection was proposed by Darwin.
AR-5
Assertion: Harmful variations usually disappear from populations.
Reason: Such variations reduce survival and reproduction.
Answer: A
AR-6
Assertion: In asexual reproduction, diversity is very low.
Reason: DNA copying is completely accurate.
Answer: C
âś” DNA copying is NOT completely accurate.
AR-7
Assertion: Traits present in a large population are usually older traits.
Reason: Such traits have been inherited over many generations.
Answer: A
AR-8
Assertion: Free and attached earlobes are inherited traits.
Reason: They are influenced only by environmental conditions.
Answer: C
AR-9
Assertion: Evolution is a gradual process.
Reason: Variations accumulate over many generations.
Answer: A
AR-10
Assertion: Genetics helps us understand similarities and differences among individuals.
Reason: It studies how traits are inherited and expressed.
Answer: A