Question # 1

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

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Protein

Centrioles

Spindle fibers

Cytokisnesis

The kingdom of bacteria is:

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Fungi

Monera

Protista

Plantae

Necrosis is death due to ............ cell damage.

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Unexpected

Accidental

Both a & b

None

The process of mitosis ensures that:

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Each new cell is genetically different from its parent

Each new cell receives the proper number of chromosomes

Cell will divide at the appropriate time

Chromosomes duplicated without errors.

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

Prior to cell division, each chromosome replicates or duplicates its genetic material. The products are connected by a centromere and are called:

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Sister chromosomes

Homologous Chromosomes

Non-sister chromatids

Sister chromatids

Cytokinesis in animals take place by:

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Furrow

Phragmoplast

Telophase

None of these

Down's syndrome is case of .................. .

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Autosomy

Monosomy

Trisomy

Tetrasomy

Cytokineses in a plant cell is characterized by:

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The equal division of homologous chromosomes

A pinching off a cell membrane to divide the cell

The formation of a cell plate in the cytoplasm

The movement of the chromosomes from the metaphase plate

The cell death due to tissue damage is:

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Apoptosis

Necrosis

Metastasis

Synapsis

In which stage of the cell cycle most cells spend their lives?

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Prophase

Metaphase

Interphase

Telohase

The phenomenon of spread of tumor is called:

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Malignant

Benign

Metastasis

Mitosis

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