ICSE Class 10 Genetics — Basic Fundamentals — Mock Test (2027)
Free online mock test for Genetics — Basic Fundamentals (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 Genetics — Basic Fundamentals 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.The basic units of heredity are:
- A.Chromosomes
- B.Chromatids
- C.Genes
- D.Centrosome
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2.Which of the following is NOT a reason Mendel selected garden pea for his experiments?
- A.The plant could not be easily artificially pollinated
- B.It has a short life cycle
- C.Many varieties were available in alternative forms
- D.It produces a large number of offspring in a single generation
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3.Why did Mendel choose the pea plant for his experiments?
- A.It is a bisexual plant
- B.It can self-pollinate
- C.It has many varieties with contrasting characters
- D.All of the above
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4.Work out the progeny in the following Punnett square for a marriage between a carrier woman (XX°) and a colour-blind man (X°Y). Is there a possibility of the birth of a colour-blind daughter?

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5.What is the technique called where the genetic constitution of an organism is altered by introducing new genes into its chromosomes?
- A.Genetic mutation
- B.Genetic engineering
- C.Cloning
- D.Gene therapy
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