ICSE Class 10 Molecular Basis of Inheritance — Mock Test (2027)
Free online mock test for Molecular Basis of Inheritance (ICSE Class 10 Botany) — 87 competency-based questions based on the latest CISCE 2027 syllabus, with instant marking. Try the samples below, then take the full test free.
What to expect: This mock test covers key concepts from the Molecular Basis of Inheritance chapter — including application-based and competency-focused questions aligned with how ICSE actually sets the paper.
Tip: Attempt without notes first to identify gaps, then review explanations for any wrong answers. Retake after a few days for best retention.
Sample questions
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1.In bacteria, the ribozyme responsible for peptide bond formation during translation is:
- A.23S rRNA
- B.16S rRNA
- C.5S rRNA
- D.tRNA
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2.The inducer that switches on the lac operon is:
- A.Lactose
- B.Glucose
- C.Galactose
- D.Sucrose
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3.Single-base DNA differences among humans are referred to as:
- A.SNPs (single nucleotide polymorphisms)
- B.VNTRs
- C.ESTs
- D.Codons
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4.The biochemical nature of the transforming principle was determined by:
- A.Avery, MacLeod and McCarty
- B.Watson and Crick
- C.Meselson and Stahl
- D.Jacob and Monod
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5.Assertion (A): During transcription, only one of the two DNA strands of a gene is copied into RNA. Reason (R): If both strands were transcribed, the two RNAs would be complementary and could pair to form a double-stranded RNA that cannot be translated.
- A.Both A and R are true and R is the correct explanation of A
- B.Both A and R are true but R is NOT the correct explanation of A
- C.A is true but R is false
- D.A is false but R is true
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