Question # 1

The long day plant produce flowers in the presence of photochrome.

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P-660

P-770

P-730

P-600

The release of ovum from the ovary is called.

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Ovulation

Menstruation

follicle atresia

Menace

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

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Malignant

Benign

apoptosis

Necrosis

Opening of flower bud follows.

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Photonasty

Hyponasty

Epinasty

Haptonasty

Bundle caps in sunflower stem, are formed by

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Sclerenchyma

Parenchyma

Mesenchyma

Collenchyma

In incubating eggs artificially the incubators are usually regulated at temperature between

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20 - 22^oC

27 - 29^oC

30 - 32^oC

36 - 38^oC

Water is stored for use during the period of drought in fleshy stems of

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Cacti

Euphoribia

Both a & b

None of these

Which neurons have long axon.

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Sensory

Motor

Cell body

Associateive

In the eighteenth century organisms were classified by

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Charles Darwin

Alfred Wallace

Carolus Linnaeus

J.B Lamarck

Origin site of replication is one in

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Prokaryotes

Eukaryotes

None of these

Both a & b

The structure which respond are called.

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Effectors

Nerves

Receptors

Sense organs

Eco. R is a commonly used

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Gene

Restriction enzyme

Bacteria

Bacteriophage

How many type of receptors are present in skin.

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Three

Six

Five

Two

How many million nucleotides are in DNA of typical human chromosome

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140

160

180

200

The union of meiotically produced specialized sex cells from each parents produce

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Fertilized egg

Unfertilized egg

Zygote

Both a & c

With in the ovary , progestetrone is produced by the:

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Corpus albicans

Corpus Luteum

Tertairy follicles

Primary follicles

During which stage chromosomes are doubling

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G2 Phase

G1 phase

S-Phase

G0 Phase

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

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