Question # 1

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 occurs due to error in

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Binary fission

Budding

Mitosis

Meiosis

Monqolism is the other name of.

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Mongolism

Kline felter syndrome

Down's syndrome

Turner's syndrome

The chances of teenage mother having down's syndrome child is.

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One in one hundred

One in many thousand

One in one thousand

One in ten thousand

Karyokinetic involves division of.

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Cell

Nucleus

Cell membrane

Cytoplasm

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

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7th

15th

19th

21st

The microtubules of mitotic apparatus are composed of protein tubulin nd traces of.

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DNA

RNA

Lipids

Terpenoids

The prophase stage in which the chromosomes become visible, shorten and thick.

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Leptotene

Zygotene

Pachytene

Diphotene

The stage that lasts for days, weeks or event years

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Zygotene

Leptotene

Pachytene

Diplotene

Crossing over and random assortment of chromosomes are two significant happenings of

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Mitosis

Amitosis

Meiosis

All a,b,and c

The actual reduction division is.

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Meiosis -I

Mitosis

Cytokinesis

Meiosis -II

Seperation of homologous chromosomes occur during..

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Anaphase

Prophase

Metaphase

Telephase

The most critical phase of mitosis, which ensures equal distribution of chromatids in the daughter cells is.

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Prophase

Tele phase

Meta phase

Anaphase

The tumor which is localized and not transferred to other body parts.

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Malignant

Benign

apoptosis

Necrosis

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

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Interphase

Prophase

Metaphase

Anaphase

Which tumor is delocalized or has branches other than site of orgin.

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Benign

Malignant

Both

Apoptosis

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

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

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XXY

XXXY

XO

XYY

Cell death due to tissue damage is called.

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Apoptosis

Metastasis

Necrosis

Suicid

Chiasmata formation take place duirng.

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Leptotene

diakinesis

Diplotene

Pachytene

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

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