Biology

Scientist who gave concept of species and proposed classification of insects, reptiles and quadrapods

Options

(a) carolus linnaeus (b) john ray (c) george bilton (d) george cuvier

Correct Answer:

john ray

Explanation:

No […]

Related species which are reproductively isolated but morphologically similar are called

Options

(a) sibling (b) sympratic (c) allopatric (d) morphospecies

Correct Answer:

sibling

Explanation:

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Photosynthetic bacteria have

Options

(a) pigment system I (b) pigment system II (c) both a and b (d) some other kind of pigments

Correct Answer:

some other kind of pigments

Explanation:

No explanation […]

Phenetic classification of organism means

Options

(a) observable characteristics (b) ancestral lineage (c) based on DNA characteristics (d) sexual characteristics

Correct Answer:

observable characteristics

Explanation:

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Outer limiting layer of mycoplasma is

Options

(a) slime layer (b) mucilage layer (c) cell wall (d) cell membrane

Correct Answer:

cell membrane

Explanation:

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Outer covering of viruses made up of protein is

Options

(a) capsid (b) coat (c) virion (d) viriod

Correct Answer:

capsid

Explanation:

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Nuclear dimorphism occurs in group

Options

(a) zooflagellata (b) ciliata (c) sporozoa (d) sarcodina

Correct Answer:

ciliata

Explanation:

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Nitrifying bacteria convert the

Options

(a) nitrates into nitrites (b) nitrites into nitrates (c) ammonium salts into nitrates (d) ammonium salts into amino acid

Correct Answer:

ammonium salts into nitrates

Explanation:

No explanation […]

Mycoplasma differ from viruses in that they are sensitive to

Options

(a) Penicillin (b) tetracyclines (c) sugars (d) aminoacids

Correct Answer:

tetracyclines

Explanation:

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