Question # 1

Gene of interest is joined with sticky ends with the help of enzyme

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DNA helicase

DNA polymerase

DNA ligase

RNA polymerase

Such ciliates that remain attached to a rock or other surface is called

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Motile

Sessile

Both a & b

None

Different alleles of a gene that are both expressed in a heterozygous condition are called

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Co dominance

Incomplete dominance

Over dominane

Complete dominance

Which one is not true about the presence of gases in air

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It consists of 79% N

It consists of 20% O₂

It consists of 0.03% CO₂

It consists of 80% inert gases

The term ecology comes from the word oikos which is a word

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Greek

Italic

Latin

French

Water regulation in fresh water ciliates is controlled by special organelle called

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Food vacuole

Contractile vacuole

Cytoplasm

Nucleus

The circulatory system accounts for the rapid mass flow of materials from one part of the body to the other is_____than diffusion

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Rapid

Slow

Very low

None

Gaseous exchange through the lungs is called

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Cellular respiration

Pulmonary respiration

Inhalation

Expiration

Feeding by living in or on other organism belonging to different species is called

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Saprophytic nutrition

Parasitic nutrition

Symbiotic nutrition

All of above

The part of earth inhabited by living organisms and non-living components is called

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Ecosystem

Biosphere

Habitat

Niche

Identify the disease which (till now) do not have vaccine

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Polio

Whooping cough

Measles

AIDs

According to five kingdom system the Protists are

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Unicellular eukaryotes

Multicellular

Without cells

None

Air is polluted due to industrialization and automobiles polluted air does not contain which one of them

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CO

Hydrocarbons

Oxides of N 8 sulpher

CO₂

Chromosomes are thread like structure that appear inside the______at the time of cell division

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Cytoplasm

Nucleus

Mitochondria

None

Primary wall is composed of

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Cellulose

Cutin

Lignin

Waxes

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