Question # 1

Armadillos, the armored mammals live only in

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Africa

America

Europe

Asla

The category of plants that has adaptation of small and thick leaves to limit water loss is called.

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Hydrophytes

Xerophytes

Aygrophytes

Mesophytes

Etiolated plants grow without.

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Water

Light

O2

CO2

The removal of apex release that lateral buds from the apical dominance. It is called

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Inhibitory effect

Compensatory effect

Apical dominance

Reproduction

In sickle cell anemia code for glutamic acid is replaced by.

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Leucine

Valine

Proline

Histidine

Mammalian kidney including human is adapted to conserve water by over

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20.5%

50%

99.5%

70%

Sperm are formed in.

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Vas deferens

Collecting ducts

Seminiferous tubules

Epididymis

Galls are growth on a plant that are induced by

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Ticks

Protozoons

Parasites

Fungi

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

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XXY

XXXY

XO

XYY

According to endosymbiont hypothesis, the aerobic bacteria developed into.

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Ribosome

Lysosome

Mitochondria

Golgi apparatus

Cancer is caused mainly by mutation in.

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somatic cells

Sex cells

Malignant cells

Reproductive cells

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

Human skin colour is also a quantitative trait which is controlled by

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3 - 6 gene pairs

1 - 3 gene pairs

None of these

Euglena moves with the help of.

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Cillium

Pseudopodium

Flagellum

Myonemes

In human mid brain is

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Reduced

Enlarged

Swollen

Broken

Hind brain includes the medulla pons and

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Cerebrum

Cerebellum

Thalamus

Amygdala

Mitosis may be divided into two phases

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Karyikinesis & cytokinesis

Karyikinesis & diakinesis

Diakinesis & cytokinesis

Exokinesis & endokinesis

The Sclerenchyma has thick secondary walls usually impregnated with.

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Chitin

Pectin

sillica

Lignin

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