Question # 1

Angular thickenings in their primary walls are present in.

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Parenchyma

Collenchyma

Tracheids

Sclernchyma

In amoeba movement takes place by means of

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Cilium

Flageilum

Pseudopodium

Myonemes

The average rainfall is between 750 - 1500 mm in

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Temperate deciduous forests

Coniferous alpine and boreal forests

Tropical rain forests

Grassland ecosystem

Incomplete dominance was discovered by 4 '0 clock olant in 1899 by.

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devries

Jhannsen

Carl correns

Tscharmach

The part of human limbic system.

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Amygdata

Cerebrum

Thalamus

Pons

The corpus luteumscetres a hormone called.

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Oxytocine

Progestrone

Testostrone

Ostrogen

Number of ammonia molecules required to produce one molecule of urea is.

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1

2

3

4

Pairing of homologous chromosomes for tetrad formation starts at.

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Leptotene

Zygotene

Diplotene

Pachytene

The phase of meiosis during which nuclei disappear int he cell is called.

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Pachytene

Leptotene

Zygotene

Diplotene

The onset of epilepsyis usually before age of

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10 years

20 years

30 years

40 years

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

Abdomen has a peritoneal cavity, lined by a thin epithelium called.

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ectoderm

endoerm

Peritoneum

Epidermis

The number of chromosomes in frog is

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52

26

13

7

Joints that are held together by short fibers embedded in connective tissue.

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Fibrous joints

synovial joints

Hing joint

Cartilaginous joint

Effect of photoperiodism was first studied in 1920 by

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Darwin & Francis

Garner & Allard

Linnaeus & Lamarck

Walson & Crick

Movement shown by sperms of liver Worts, mosses, forns towards archegonia is a.

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chemotactic movement

Photoactic movement

Chemotropic movement

Phototropic movement

The existing species are the modified descendants of pre-existing ones according to:

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Theory of special creation

Theory of organic evolution

Uniformitarianism

Theory of catatrophe

The leaf unrolling is promoted by red light in.

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Monocot

Dicot

Ferns

Gymnosperm

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