Question # 1

Interphase can further be divided into

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G₁-phase,S-phase and G₂-phase

G₁-phase,G₂-phase and G₃-phase

S₁-phase,S₂-phase and S₃-phase

S₁-phase,G-phase and S₂-phase

Apoptosis is.

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Division of cells

Death of cells by tissue damage

suicide of cells

Weakness of cells

Full cell cycle in yeast cells has length of.

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30 minutes

60 minutes

90 minutes

124 minutes

Which one is absent in animal cells.

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spindle

Centriole

Chromatids

Phragmoplast

Post mitotic cells can exist the cell cycle during.

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G1 Phase

G0 phase

G3 phase

S phase

Programmed and organized death of cell is known as.

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Apoptosis

Cancer

Necrosis

Metastasis

Nuclear membrane disorganizes at the beginning of

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Prophase 1

Metaphase 1

Anaphase 1

Telophase 1

The series of changes which involve period of growths replication of DNA followed ny cell division may be named as

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DNA cycle

Nuclear cycle

Cell cycle

Chemical cycle

The average cell cycle in human is.

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24 hours

26 hours

28 hours

30 hours

Which of the following chromosome abnormalities lead to tallness, aggressiveness mental defect and anti social behavior.

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XXY

XXXY

XO

XYY

Karyokinesis involves division of nucleus and cytokinesis refer to

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Division of whole cell

Division of centromere

Division of cytoplasm

Division of cell wall

The interphase of meiosis lacks the stage.

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G0

G1

G2

S

The autosomal non disjunction in man in which 21st pair of chromosome fail to segregate resulting in gametes with 24 chromosomes is.

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Down's syndrome

Klinfilter syndrome

Turner's syndrome

Jacob's syndrome

Cancer is caused mainly by mutation in.

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somatic cells

Sex cells

Malignant cells

Reproductive cells

Which pair of chromosome fails to segregate in down's syndrome.

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7th

15th

19th

21st

Contractile ring in cytokinesis is formed by

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Tubulin

Actin and Myosin

Keratin

Cyclin

A network of very fine threads called chromatin can be visualized in call during

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Interphase

Prophase

Metaphase

Anaphase

Cell cycle involves.

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Growth of cell

Replication of DNA

Cell division

None of these

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