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.What is heredity?
- A.The study of organisms' surroundings
- B.The transmission of genetically based traits from parents to offspring
- C.The creation of new species
- D.The study of plant anatomy
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2.A certain couple got only four daughters in a row and no son. Does this outcome indicate that the husband does not produce Y-bearing sperms?
- A.No, the sex of each child is determined by chance, with a 50% probability for a son or daughter.
- B.Yes, the absence of sons proves the husband lacks Y-bearing sperms.
- C.No, the husband produces only X-bearing sperms after the first daughter is born.
- D.Yes, the probability of having four daughters in a row is impossible if Y-bearing sperms exist.
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3.Riya is conducting a genetics experiment with pea plants and wants to prevent self-pollination to allow cross-pollination. What method did Mendel use to prevent self-pollination in pea plants?
- A.Removing corresponding reproductive parts
- B.Natural pollination
- C.Artificial cross-pollination
- D.Chemical treatment
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4.Match the following Column :
Column A Column B (i) Dominant gene (a) Similar chromosomes of the same shape and size. (ii) Genetics (b) Sudden change in a gene. (iii) Sex chromosomes (c) The expressed gene of an allele. (iv) Mutation (d) The study of inheritance of characters. (v) Homologous chromosomes (e) Determine the sex of a child. -
5.Why does generally only the male child suffer from colour blindness and not the female?
- A.Colour blindness is a sex-linked recessive trait carried on the X chromosome, and males have only one X chromosome.
- B.Colour blindness is caused by a dominant allele on the Y chromosome, which only males possess.
- C.Females have two Y chromosomes, which protect them from colour blindness.
- D.Males inherit colour blindness from their fathers, who pass the disorder directly to sons.
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