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Semiconservative replication of DNA was first demonstrated in

Salmonella typhimurium
Drosophila melanogaster
Escherichia coli
Streptococcus pneumoniae
Additional Questions

Some hyperthermophilic organisms that grow in highly acidic (pH2) habitats belong to the two groups

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Morphine, which is used as an analgesic is obtained from

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The common nitrogen-fixer in paddy fields is

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The symbiotic association of fungi with the roots of higher plants is called:

Answer

What is the common name of Drosophila melanogaster?

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Which of the following is a gram-negative bacterium?

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Study the following lists:

List - IList - II
(A)Usage of bisexual flowers as female parents(I)Clonal selection
(B)Incorporation of several desirable characters into a single variety(II)Pure line selection
(C)Exploiting hybrid vigour for many generations(III)Emasculation
(D)Improving local varieties of self pollinated crop(IV)Hybridization
(V)Polyploidy breeding

The correct match is:

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The term antibiotic was coined by:

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Which of the following is added to milk to curdle it or produce fermented milk products?

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Physical removal of large and small from the sewage through filtration and sedimentation is called:

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