Chapter Exam

Unit 4 Chapter 10: Cell Cycle and Cell Division — Online MCQ Test

Q: Which phase of the cell cycle is the longest and includes cell growth and DNA replication?

Answer: A. Interphase — Interphase is the longest stage of the cell cycle. It includes G1, S, and G2 phases, during which the cell grows and replicates its DNA.

Q: During which stage of mitosis do sister chromatids separate and move to opposite poles?

Answer: C. Anaphase — In anaphase, the centromeres split and sister chromatids separate to opposite poles of the cell.

Q: The main significance of mitosis is to produce daughter cells that are:

Answer: B. Genetically identical and diploid — Mitosis produces two genetically identical daughter cells with the same chromosome number as the parent cell, usually diploid.

Q: Which is the most accurate reason why the spindle apparatus is essential during cell division?

Answer: B. It helps separate chromosomes to opposite poles — Spindle fibres attach to chromosomes and ensure their proper movement to opposite poles during division.

BOTANY · CLASS 11 INTERMEDIATE 1 YEAR · Telangana State Board

Practice Unit 4 Chapter 10: Cell Cycle and Cell Division with a free chapter-wise online MCQ test for Telangana State Board CLASS 11 INTERMEDIATE 1 YEAR BOTANY. This chapter covers: This chapter details cell growth phases interphase stages chromosome condensation mitotic division meiotic division and significance of nuclear division processes.. AI-generated questions from basic to board-exam level, with instant results and explanations.

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Unit 4 Chapter 10: Cell Cycle and Cell Division — Important Questions & Answers (FAQ)

Frequently asked questions from Telangana State Board CLASS 11 INTERMEDIATE 1 YEAR BOTANY — Unit 4 Chapter 10: Cell Cycle and Cell Division, with answers and explanations. These are sample questions; the exam has its own separate question set.

Which phase of the cell cycle is the longest and includes cell growth and DNA replication?

A. Interphase ✓
B. Anaphase
C. Telophase
D. Cytokinesis

Answer: A. Interphase
Interphase is the longest stage of the cell cycle. It includes G1, S, and G2 phases, during which the cell grows and replicates its DNA.

During which stage of mitosis do sister chromatids separate and move to opposite poles?

A. Prophase
B. Metaphase
C. Anaphase ✓
D. Telophase

Answer: C. Anaphase
In anaphase, the centromeres split and sister chromatids separate to opposite poles of the cell.

The main significance of mitosis is to produce daughter cells that are:

A. Genetically different and haploid
B. Genetically identical and diploid ✓
C. Genetically identical and haploid
D. Genetically different and diploid

Answer: B. Genetically identical and diploid
Mitosis produces two genetically identical daughter cells with the same chromosome number as the parent cell, usually diploid.

Which statement best explains the importance of meiosis in sexual reproduction?

A. It produces identical body cells for growth
B. It maintains chromosome number in offspring without variation
C. It forms gametes with half the chromosome number, helping maintain species chromosome number ✓
D. It duplicates chromosomes twice before division

Answer: C. It forms gametes with half the chromosome number, helping maintain species chromosome number
Meiosis produces haploid gametes, and fertilization restores the diploid number, thus maintaining chromosome number across generations.

Which is the most accurate reason why the spindle apparatus is essential during cell division?

A. It synthesizes new DNA during S phase
B. It helps separate chromosomes to opposite poles ✓
C. It forms the cell plate in plant cells
D. It joins two gametes during fertilization

Answer: B. It helps separate chromosomes to opposite poles
Spindle fibres attach to chromosomes and ensure their proper movement to opposite poles during division.