Question # 1

The number of lumbar vertabrae are

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5

7

12

33

The receptor cells of Planaria are sensitive to.

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Light and pressure

Light pressure and touch

Touch , pressure and chemicals

Light, pressure, touch and chemicals

Find secreted by Sertoli cells provides liquid medium, protection and nourishment to.

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Oocyte

Sperms

Polar body

Spermatids

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

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7th

15th

19th

21st

In aquatic ecosystem , near shore zone is called.

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Limnetic zone

Littoral zone

Profundal zone

Benthic zone

A gene with multiple phenotypic effect is.

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Polygenic

Bombay type

Pleiotropic

Monogenic

In human beings, the homeostatic thermostat is present in a part of the brain called as.

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Thalamus

Hypothalamus

Hipocampus

Amygdala

Every 200 nucleotides the DNA duplex is coiled around a core of eight histone proteins forming a complex known as a

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Histomone

Nucleosome

Peroxisome

Glyoxisome

The study of hman populations and things that affect them is called:

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Angiography

Demography

Mammography

Homography

___ are indole acetic acid or its variants.

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auxins

Gibberellins

Cytokinine

Ethene

The number of chromosomes in frog is

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52

26

13

7

Interphase period can be divided into.

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G1,G2, G3

G1, G2, F1

G1, S, G2

S1, G1, S2

Transfer of genetic material from one cell to other that can alter the genetic make up of recipient cell is called.

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Transcription

Replication

Translation

Transformation

The unspecialized cells present in flatworm and Planaria are.

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Neoblast

Osteoblast

Osteoclast

Chondrocyte

Mammals including human maintain their high body temperature within a narrow range of about

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30-32oC

36-38oC

32-36oC

35-37oC

Intercalary meristems are situated at.

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Root apex

Shoot apex

Base of internode

Top of internode

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

In prokaryote within promoter there are two binding sites TTGACA also called -35 sequence and TATAAT also called

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-10 sequence

- 20 sequence

- 30 sequence

- 35 sequence

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