Question # 1

Diploid parthenogenesis may occur in

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Aphids

Bees

Wasp

Honey bee

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

How many type of receptors are present in skin.

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Three

Six

Five

Two

Limetic phytoplankton include the.

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Bacteria

Cyanobacteria

Fishes

Mouses

Endosymbiont hypothesis was proposed by.

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Wallace

Lamarck

Lynn Margulis

Linnaeus

Bundle caps in sunflower stem, are formed by

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Sclerenchyma

Parenchyma

Mesenchyma

Collenchyma

In Meselson ansd stahl experiment, the DNA from sample at 20 minutes, after centrifugatioon it made sediments at the :

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Top

Bottom

Intermediate

Top & intermediate

The protective coat which surrounds the embryo is known as:

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Amnion

Chorion

Allantosis

Chorio Allantoic

ADH affects which part of Nephron.

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Walls of collecting duet

Glamerulus

Walls of loop of Henle

Proximal convuleted tubule

Among vertebrates uric acid is the chief nitrogenous waste in birds and

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Fishes

amphibians

Reptiles

Mammals

the active uptake of sodium in the loop of Henle is provided by the actioon of hormone

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Cortisone

Testosterone

Aldosterone

Progesterone

Animals that do not require to adjust their internal osmotic state actively are known.

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Osmoregulators

Osmocorformers

Terrestrials

Hypertonic

Which will occur as a result of nondescent of the testes?

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Mal esex hormones will not be circulated in the body

Sperm will have no means of exit from the body

Inadequate blood supply will retard the development of the testes

Variable sperm willnot be produced

Cambium is formed in stage.

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One

Two

Three

Four

The concentrations of cell bodies of neuron are

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Ganglia

Dendrites

Axons

Nodules

Which one of the fllowing acts as a stop codon?

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UGG

UGC

UAG

UGU

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

Nephridia are the excretory structures present in.

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Hydra

Planaria

Cockroach

Earth worm

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