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Class 10 Biology questions for ICSE

Curriculum-aligned Biology questions for Class 10 under ICSE. Shortlist topics, practice at your pace, and make every answer count.

22questions available
Q01•Long Answer•[16 Marks]

Explain the process of mitosis in eukaryotic cells. Describe each phase of mitosis in detail, outlining the key events that occur during prophase, metaphase, anaphase, and telophase, and discuss the importance of mitosis in growth and tissue repair.

Q02•Long Answer•[16 Marks]

Discuss the significance of Mendel's experiments in understanding inheritance patterns. Include details about his methodology, the laws he formulated, and how these laws apply to modern genetics. Provide examples of monohybrid and dihybrid crosses to illustrate your points.

Q03•Short Answer•[5 Marks]

What is the structure of a chromosome and how does this structure support its function?

Q04•Short Answer•[5 Marks]

Define a gene and explain its role in heredity.

Q05•Short Answer•[5 Marks]

What are the functions of chromosomes in cellular processes?

Q06•Short Answer•[5 Marks]

Describe the stages of mitosis and their importance in the cell cycle.

Q07•Short Answer•[5 Marks]

Discuss the significance of cell division in growth and development of organisms.

Q08•Short Answer•[5 Marks]

What is incomplete dominance? Provide an example to illustrate this concept.

Q09•Short Answer•[5 Marks]

Explain the process of a monohybrid cross and its significance in genetics.

Q10•Short Answer•[5 Marks]

What were the key findings from Mendel's experiments on pea plants regarding inheritance?

Q11•MCQ•[2 Marks]

What is an example of incomplete dominance?

ATall and Short Plants
BRound and Wrinkled Seeds
CRed and White Flowers
DPink Flowers
Q12•MCQ•[2 Marks]

In a monohybrid cross, what is the phenotypic ratio of the offspring?

A1:1
B9:3:3:1
C3:1
D1:2:1
Q13•MCQ•[2 Marks]

What did Mendel use to study inheritance patterns in plants?

AWheat
BFruit Flies
CCorn
DPea Plants
Q14•MCQ•[2 Marks]

In a dihybrid cross, how many different phenotypes can be expected in the offspring?

A2
B16
C4
D6
Q15•MCQ•[2 Marks]

How many daughter cells are produced at the end of meiosis?

AEight
BTwo
CFour
DOne
Q16•MCQ•[2 Marks]

What is the main purpose of the S phase in the cell cycle?

ACell Growth
BProtein Synthesis
CDNA Replication
DCell Division
Q17•MCQ•[2 Marks]

During which phase of meiosis does crossing over occur?

ATelophase II
BMetaphase II
CProphase I
DAnaphase I
Q18•MCQ•[2 Marks]

What is the correct sequence of phases in the cell cycle?

AG2, M, S, G1
BM, G1, S, G2
CS, G1, M, G2
DG1, S, G2, M
Q19•MCQ•[2 Marks]

Which of the following structures can be found in a chromosome?

ARibosome
BCytoplasm
CGene
DNucleus
Q20•MCQ•[2 Marks]

What is the segment of DNA that contains the instructions for making a protein called?

AChromatid
BGene
CAllele
DCentromere