Question # 1

Necrosis is:

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Division of cells

Suicide of cells

Cell death by tissue damage

Weakness of cells

During which phase of mitosis spindles are formed?

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G2

Interphase

Prophase

Metaphase

Which of the following stage of cell division is very different for animal and plant cells?

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Telophase

Metaphase

Anaphase

Cytokinesis

In which language, Ibn-Rushd translated the Aristotle's book "de Anima"?

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Ibrani

Arabic

Hindi

PErsian

Find the correct statement.

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Homologous chromosomes form pairs during mitosis

Chromosomes do not duplicate in the interphase preceding meiosis-I

Homologous chromosomes form pairs during mitosis but not mitosis

Spindles are not required during meiosis

A membrane-bounded disc is formed in plant cell to divide cytoplasm, this is called:

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Chloroplast

Phragmoplast

Leucoplast

Chromoplast

Type of spindle fibre which attaches the chromosomes is called:

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Kinetochore

Non Kinetochore

Bot a and b

Centromere

The Klinefelter's syndrome males have an extra .................... .chromosomes.

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Sex

Autosome

Both 1 & b

None

In which stage of the cell cycle each chromosomes is duplicated and so it consists of two chromatids?

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G I

S

M

G2

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 phase which can exist for life is:

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G₀

G₁

G₂

S phase

Plants lack ................... .

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Protein

Centrioles

Spindle fibers

Cytokisnesis

Which of the following structure is absent in animals?

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Spindle

Centrioles

Chromatids

Phragmoplant

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