Question # 1

With in the ovary , progestetrone is produced by the:

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Corpus albicans

Corpus Luteum

Tertairy follicles

Primary follicles

G₁ is time between the end of mitosis and initiation of DNA synthesis also called as

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Pre-DNA synthesis phase

DNA synthesis phase

Post-DNA synthesis phase

None of these

Fertilization of the ovum normal occurs:

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In the upper thrid of the oviduct

In the lower thrid of the oviduct

In the uterus

Can take place succcessfully in vegina

Each bivalent consists of four.

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Chromosomes

Chromatids

spores

Chiasmata

In turner syndrome the affected person have set of chromosomes.

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XO

XXY

XYY

XXO

The average cell cycle in human is.

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24 hours

26 hours

28 hours

30 hours

Apoptosis is.

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Division of cells

Death of cells by tissue damage

suicide of cells

Weakness of cells

During cell division, the nuclear division is called.

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Cytokinesis

Karyokinesis

Plasmolysis

Karyotype

Tissue culture and cloning seek help through.

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Mitosis

Meiosis

endomitosis

Karyokinesis

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

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Interphase

Prophase

Metaphase

Anaphase

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 chromatids repel each other during.

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Leptotene

Zygotene

diplotene

Pachytene

The basic difference betweenn spermatogenesis and oogenesis is that :

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During spermatogenesis two more polar bodies are produced

The mature ovum is haploid while the sperm is 1n

Spermatogenesis involves mitosis and meiosis, but oogenesis involves meiosis only

In oogenesis, one mature ovum is produced, and in spermatogenesis four mature sperm are produced

The human egg is swept through the oviduct toward the uterus by:

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The beating of the egg's cilia

Rhythmic contraction of the uterus

Rhythmic contraction of the oviduct

The beating of the cilia in the oviduct

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

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Malignant

Benign

apoptosis

Necrosis

What are significant happening of meiosis.

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Crossing over

Random assortment of chromosome

Linkage

Crossing over and random assortment of chromosomes

Chromatin network is visible during

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Interphase

Prophase

Anaphase

Metaphase

Programmed and organized death of cell is known as.

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Apoptosis

Cancer

Necrosis

Metastasis

First essential phenomenon of meiosis i.e pairing of homologous Chromosomes called synapsis starts in

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Leptotene

Zygotene

Pachytene

Diplotene

Microtubule are composed of

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Myosin

Troponin

Actin

Tubulin

All are related to Turner's syndrome except.

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Short stature

Webbed Neck

Broad face

Without Ovaries

At cytokinesis in plants a membrane structure phragmoplast is formed from vesicles which originate from

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Lysosomes

Centrioles

Golgi complex

Glyoxisomes

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