Question # 1

Photo synthetic prokaryotes lack.

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Ribosomes

Cytoplasm

Chloroplasts

Cell membrane

Asexual reproduction in yeast occurs by.

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Conidia

Fragmentation

Budding

Resting spores

If tuft of flagella is present only at one pole to bacteria then these are called as

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Amphitrichous

Lophotriches

Peritrichous

Monotrichoca

Loose smut of wheat is caused by the following fungi

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Puccinia

Penicillium

Ustilago

Aspergillus

Which is an aerobic bacterium.

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E coli

Spirochete

Campy lobacter

Pseudomonas

Koshland in 1959 proposed the modified form of

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Fluid mosaic model

Induce fit model

Unit membrane model

Reflective index model

A group of similar cells that perform specific function is called.

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Tissue

Organ

System

Organdies

One of the following is not an accessory pigment.

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chlorophyll 'a'

Xanthophyll

Carotenes

Chlorophyll 'b'

Fungi are different from animals because they

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Have cell wall

Are absorptive heterotrophs

Are non-motile

All of the above

Passive immunity is developed by injecting.

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Vaccine

Serum

Antiserum

Antibiotic

Which is fluid feeder

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Sheep

Man

Earthworm

Aphid

In human pair of cranial nerves are

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12

14

16

18

The disorder in which bones are porous and thin but bone composition normal is:

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Osteomalacia

Osteoporosis

Rickets

Arthritis

Which is the most important mechanism for water loss from the body?

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Excretiong in urine

Sneezing

Sweating

Eleminatin in feces

Fresh water flatworms excrete very dilute

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Plasma

Tissue fluid

Fluid

Urine

PCR takes its name from _________ the enzyme that carries out DNA replication in a cell.

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DNA Polymerase

DNA Ligase

DNA Polymerase II

Restriction enzymes

The causes of green house effect are:

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Over urbanization

Deforestation

Industrialization

All of them

Human cells contain types of tRNA molecules.

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20

45

195

300

The form of appearance of the trait is called.

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Genotype

Phenotype

Wild type

dominance

A pair of kidneys consists of millons of functional units called

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Nephrons

Neurons

Dendrons

Flatirons

Every gene starts with initiation codon AUG which encodes for the amino acid.

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Lysine

Serine

Proline

Methionine

In juxtamedullary nephrons additional capillaries extend down to form at.

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Vasa deferontia

Vasa efferetia

Vasa recta

Vasa hecta

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