Cell Cycle And Cell Division Mock Tests

29 questions available

Cell Cycle And Cell Division Mock Test 1

Questions: 29

Sample Questions

Class 11 Biology

Which of the following structures is formed during Zygotene of Prophase I in meiosis?

A Synaptonemal complex (zipper-like structure between homologous chromosomes)

B Chiasmata

C Spindle fibres

D Nuclear envelope

Class 11 Biology

Crossing over (recombination) between homologous chromosomes occurs during which stage of meiosis?

A Prophase I (Pachytene sub-stage)

B Metaphase I

C Anaphase II

D Prophase II

Class 11 Biology

During which phase of the cell cycle are new nucleoli and centrosomes formed?

A G₁ phase

B S phase

C G₂ phase

D M phase

Class 11 Biology

Meiosis I is also called "reduction division" because:

A The chromosome number is reduced from diploid (2n) to haploid (n) during this division

B DNA content is completely eliminated from the cell

C The cell size is reduced by half

D Chromosomes lose half their genetic material

Class 11 Biology

During meiosis I, homologous chromosomes separate during which stage?

A Prophase I

B Metaphase I

C Anaphase I

D Telophase I

Class 11 Biology

Which of the following events occurs during Anaphase of mitosis?

A Sister chromatids separate and move toward opposite poles of the cell

B Chromosomes align at the metaphase plate

C Nuclear envelope reforms

D Crossing over occurs between homologous chromosomes

Class 11 Biology

Binary fission, the most common method of asexual reproduction in bacteria, is classified as:

A A type of mitotic division (though technically it is not mitosis, as prokaryotes lack true mitosis)

B A type of meiotic division

C A type of amitotic division seen in eukaryotic cells like Amoeba

D A form of budding

Class 11 Biology

During which stage of meiosis does crossing over between homologous chromosomes occur?

A Leptotene

B Zygotene

C Pachytene

D Diplotene

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