Question # 1

The shrinkage of protoplast due to exosmosis of water is called

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Plasmodermata

Cytoplasmic strand

Plasmolysis

Protoplast

Prokaryotic cell wall lacks

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Peptidoglycan

Murein

Cellulose

None

Primary wall is composed of

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Cellulose

Cutin

Lignin

Waxes

Leguminous plants have nodules on their roots which contains

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Saprophytic bacteria

Parasitic bacteria

Nitrogen fixing bacteria

None

Developing seeds are rich source of

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Auxins

Gibberellins

Cytokinins

All of above

All populations within a ecosystem is called

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Habitat

Niche

Biosphere

Community

Photosynthesis occurs only during

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Day

Night

Day and night

Evening

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

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Motile

Sessile

Both a & b

None

Which of the following phylum have animals which lack tissue organized into organs and have indeterminate shape and are symmetrical

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Arthropoda

Echinodermata

Coeleontrats

Porifera

Plasmids were discovered by studying the sex life of the intestinal bacterium

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Entamoeba histolytica

Escherichia coli

Anabena

Plasmodium

When two contrasting pairs of traits are followed together in the same cross alleles in each pair are inherited or assorted independently into gamete's is Mendel's principal of

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Law of segregation

Law of independent assortment

Law of dominance

Law of unit character

If non-protein part is loosely attached with the substrate then it is called

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Co-enzyme

Prosthetic group

Activator

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

The major unit of ecology is

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Evolution

Biosphere

Niche

Ecosystem

Animals from annelids to chordate are

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Acoelomates

Pseudocoelomates

Coelomates

None

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