Question # 1

In sickle cell anemia disease, a single thymine is replaced with an adenine in the DNA that codes for.

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Valine

Glycine

Histidine

Glutamic acid

Morphological characteristics of chromosome are collectively called.

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Holotype

Karyokinesis

Karyotype

Neotype

Mountain of Karakoram are located in major terrestrial ecosystem in Pakistan.

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Grass land

tundra

Coniferous alpine forest

Temperate deciduous forest

It is estimated that human genome could take an encyclopaedia of 200 volumes each with

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10 pages

100 pages

1000 pages

10,000 pages

Chemical that cause fever and are produce from blood cells are

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Bilirubin

Interferons

Pyrogens

Anti biodies

A weed called mouse eared cress is engineering produce a biodegradable plastic called.

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Luciferin

Digitoxin

Polyhydroxy butyrate

Pheylalanine

Reptiles and birds are.

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Viviparous

Ovlparous

Marsupial

Ovoviviparous

Armadillos the armoured mammals live only in the

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Africa

America

Europe

Asia

If population of predator increase then population of prey

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Increases

Decreases

May increase

Has no effect or decrease

Causative agent of genital herpes is a.

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Virus

Bacteria

fungi

Protozoan

The most important hormone in initiating and maintaning lacation after birth is:

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Estrogen

FSH

Prolatin

Oxytocin

The laptotene and zygotene lasts for.

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Few hours

Few days

Few weeks

Few years

Which one is non-directed orientation?

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Taxis

Kinesis

Tropism

Imprinting

An association between two organisms by which both are benefited is called.

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Parasitism

commensalism

Mutualism

Predation

Bundle caps in sunflower stem, are formed by

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Sclerenchyma

Parenchyma

Mesenchyma

Collenchyma

The organisms used a biofilters is.

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Transgenic plant

Transgenic bacteria

Transgenic animal

Transgenic virus

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

The total aggregate of genes in a population at any one time is called the populations gene

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Puddle

Lake

Pool

Pond

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