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.There is a 50-50% chance for getting a male or female child. Which statement justifies this?
- A.Equal probability of X or Y sperm fertilizing the egg
- B.The egg determines the sex of the child
- C.All sperm carry the same sex chromosome
- D.The chance depends on the mother's diet
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2.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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3.What happens when a male has an abnormal gene on his X chromosome?
- A.The Y chromosome masks it
- B.The disease occurs because there is no gene on the Y chromosome to mask it
- C.The abnormal gene is repaired by the body
- D.The gene causes no effect in males
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4.The type of gene, which in the presence of a contrasting allele is not expressed:
- A.Homozygous
- B.Heterozygous
- C.Dominant
- D.Recessive
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5.Why did Mendel choose garden pea (Pisum sativum) for his experiments?
- A.They were easy to grow
- B.They had many varieties with contrasting characters
- C.They had a long reproductive span
- D.They were available in pure forms
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