ICSE Class 10 Cell Cycle and Structure of Chromosomes — Mock Test (2027)
Free online mock test for Cell Cycle and Structure of Chromosomes (ICSE Class 10 Biology) — 20 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 Cell Cycle and Structure of Chromosomes 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.What are genes?
- A.Specific sequences of nucleotides on a chromosome that encode particular proteins and determine inherited traits.
- B.Random segments of DNA that do not influence an organism's characteristics or heredity.
- C.Structures within the nucleus that store genetic information but do not participate in protein synthesis.
- D.Proteins that directly express physical traits without involvement of DNA or chromosomes.
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2.Which of these structures, involved in cell division, is present in animal cells but not higher plant cells?
- A.Centriole
- B.Centromere
- C.Chromatid
- D.Chromosome
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3.During anaphase, chromosomes are arranged at the equator. This statement is:
- A.False. During anaphase, chromosomes move toward the poles.
- B.True. Chromosomes align at the equator during anaphase.
- C.False. Chromosomes are randomly distributed during anaphase.
- D.True. The equator is the primary site for chromosome arrangement in anaphase.
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4.Which of the following bonds are broken during DNA replication?
- A.Hydrogen bonds between bases.
- B.Phosphodiester bonds.
- C.Covalent bonds between bases.
- D.Ionic bonds between bases and phosphate groups.
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5.When a cell divides, these events occur. 1. The DNA inside the cell is duplicated exactly. 2. Daughter cells are produced with the same chromosome number as the parent cell. Which type of division has occurred?
- A.Meiosis producing genetically different cells.
- B.Meiosis producing genetically identical cells.
- C.Mitosis producing genetically different cells.
- D.Mitosis producing genetically identical cells.
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