CBSE-CLASS-XII SERIES Biotechnology
Cell Biology
1 previous year questions.
Volume: 1 Ques
Yield: Medium
High-Yield Trend
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2025 Chapter Questions 1 MCQs
01
PYQ 2025
medium
biotechnology ID: cbse-cla
Two statements are given โ one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer from the codes given below:
Assertion (A): Contact inhibition is absent in cancer cells.
Reason (R): Normal cells stop growing when they reach the walls of the container.
Assertion (A): Contact inhibition is absent in cancer cells.
Reason (R): Normal cells stop growing when they reach the walls of the container.
1
Both Assertion (A) and Reason (R) are true and the Reason (R) is the correct explanation of the Assertion (A).
2
Both Assertion (A) and Reason (R) are true, but the Reason (R) is not the correct explanation of the Assertion (A).
3
Assertion (A) is true, but Reason (R) is false.
4
Assertion (A) is false, but Reason (R) is true.