Question # 1

Necrosis is:

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Division of cells

Suicide of cells

Cell death by tissue damage

Weakness of cells

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

................ is similar to mitosis.

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Meiosis I

Meosis II

Interphase

G-phase

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

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

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DNA replication

Protein synthesis

RNA transcription

Enzyme synthesis

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

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Protein

Centrioles

Spindle fibers

Cytokisnesis

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

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Prophase

Metaphase

Anaphase

Cytokinesis

In which stage of the cell cycle, the cell is preparing enzymes for chromosome duplication.

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G1

G2

S

M

the Genetic variation are produced as a result of .............. .

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Meiosis

Mitosis

Interphase

None

The cell death due to tissue damage is:

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Apoptosis

Necrosis

Metastasis

Synapsis

The phase which can exist for life is:

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G₀

G₁

G₂

S phase

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

Chromatids get separated form each other during:

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Prophase

Telophase

Anaphase

Metaphase

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

During which phase of mitosis spindles are formed?

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G2

Interphase

Prophase

Metaphase

Uncoiling of chromosomes take place during:

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Anaphase

Telophase

Anaphase

Metaphase

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.

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