Question # 1

Nuclei of human cell contain ............ autosomes.

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23 pairs

22 pairs

12 pairs

14 pairs

Chromosomes condensation occurs during .............. .

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G1-phase

G2-phase

S-phase

Interphase

For mitosis, the chromosomes of the cells are duplicated during interphase. When do the chromosomes duplicated for meiosis?

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Before meiosis 1

Before meiosis 2

During Meiosis 1

Do not duplicate

The phases of cell cycle are:

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Interphase

Division phase

Both a and b

None

Example of Apoptotic process is ............... .

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Disappearance of tadpole tail

Disappearance of web human hand

Formation of fingers of hand

All of the above

During the division phase the cell ................ into two.

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Split

Divide

Both

None

In which stage of the cell cycle, the cell is preparing enzyme for chromosome replication?

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G1

G2

S

M

Which of the following distinguishes meiosis from mitosis?

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The chromosome number is reduced

Chromosomes undergo crossing over

The daughter cells are genetically different from the parent cell.

All of the above

Which of the following is unique to mitosis and not a part of meiosis?

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Homologous chromosomes pair forming bivalents

Homologous chromosomes cross over

Chromosomes pairs are broken during anaphase

Chromatids separate during anaphase

Which phase of meiosis is similar to mitosis?

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Prophase I

Telophase II

Meiosis I

Meiosis II

Which event distinguishes meiosis from mitosis?

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Condensation of chromosomes

Loss of the nuclear membrane

Formation of metaphase plate

Pairing of homologous chromosomes

Which is not the function of mitosis?

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Development and growth

Cell replacement and regeneration

Asexual reproduction

Sexual reproduction

Mitosis help i the .................. .

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Growth

Regenration

Cell replacement

All of the above

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