Question # 1

Crossing occurs during ..................... .

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Meiosis

Mitosis

Meiosis II

None

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

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G1

G2

S

M

Chromosomes are not visible during:

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Anaphase

Prophase

Interphase

Metaphase

Type of spindle fibre which attaches the chromosomes is called:

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Kinetochore

Non Kinetochore

Bot a and b

Centromere

If you observe cell like this one, what phase of mitosis is it?

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Anaphase

Telophase

Metaphase

Prophase

During S-phase ..................... occurs.

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DNA replication

Protein synthesis

RNA transcription

Enzyme synthesis

Which event distinguishes meiosis form mitosis?

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Condensation of chromosomes

Loss of the nuclear membrane

Formation of metaphase plate

Pairing of homologous chromosomes

Chromatains are condensed during:

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Anaphase

Prophase

Anaphase

Metaphase

What reason would you suggest for the fact that the total DNA content of each daughter cell is reduced during meiosis?

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Chromosomes do not replicate during the interphase before meiosis 1

Chromosomes do not duplicate between meiosis 1 and 2

Half of the chromosomes form each gamete are broken

Sister chromatids separate during anaphase of meiosis 1

the division of cytoplasm is called ............. .

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Karyokinesis

Cytokinesis

Anaohase

Telophase

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

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Growth

Regenration

Cell replacement

All of the above

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 one is the lowest taxon of classification?

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Genus

Order

Species

Phylum

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Biology 9th Class English Medium Chapter 5 Online Test MCQs With Answers

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