Question # 1

A central role for chromosomes in heredity was first suggested in 1900 by.

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Karl correns

W. Sutton

F. Griffiths

T.H.Morgan

Young tissues retaining the potential to divide.

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Meristem

Xylem

Phloem

Cork

A condition in which palatine processes of maxilla and palatine fall to fuse is.

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Microcephaly

Cleft palate

Fused palate

Osteoarthritis

Union of gametes is called.

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Fertilization

Spermatogensis

oogenesis

Gametegenesis

Apoptosis is.

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Division of cells

Death of cells by tissue damage

suicide of cells

Weakness of cells

In honey bee, males are haploid and produce sperms by.

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Mitosis

Meiosis

Apomixis

Parthenogenesis

An example of long day plant is

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Tomato

Cabbage

Corn

Soyabean

The increase of level of strongmen stimulation secretion of.

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LH

LTH

TSH

ACTH

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

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Interphase

Prophase

Metaphase

Anaphase

Fruit ripening is due to the production of.

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Auxins

Cytokinin

Gibberellin

Ethane

Temperate deciduous forest are located in Pakistan at.

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Chilas

Mian wali

Shogran

Sindh

The hormone which inhibits root growth is.

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auxins

gibberellins

Absclsic acid

Cytokinins

At the time of independence in 1947 the population of pakistan was

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10 m

20 m

25.7 m

32.5 m

Which of the following is macronutrient.

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Zinc

Iron

Sulphur

Iodine

In oceans especially in tropical regions temperature of surface water is about

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10^oC

15^oC

25^oC

35^oC

An ezyme that can be used to treat a human Iysosome storage disease is

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B-galactosidase

a-galactosidase

Glucosidase

Invertase

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

The interphase of meiosis lacks the stage.

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G0

G1

G2

S

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