Which one of the following is not a nitrogen-fixing organism?
a. Anabaena
b. Nostoc
c. Azotobacter
d. Pseudomonas
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The body of an organism is streamlined and has feathers on its body. Identify the organism and write one specific feature of it.
Aves. Specific feature of Aves is that they are warm –blooded having a four chambered heart and modified forelimbs for flight.
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When a foreign DNA is introduced in to an organism, how it is maintained in the host and how it is transferred to the progeny of the organism?
Foreign gene is usually ligated to a plasmid vector and introduced in the host. As plasmid replicates and makes multiple copies of itself, so does the foreign gene gets replicated...
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When a foreign DNA is introduced in to an organism, how it is maintained in the host and how it is transferred to the progeny of the organism
Foreign gene is usually ligated to a plasmid vector and introduced in the host. As plasmid replicates, and makes multiple copies of itself, so does the foreign gene gets replicated...
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Give two problems which arose with the new Munro system of fixing revenue.
Two problems which arose with the new Munro system of fixing revenue were: (i) Driven by the desire to increase the income from land, revenue officials fixed too high a revenue demand. (ii)Peasants...
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Niche is (1) all the biological factors in the organism environment (2) the physical space where an organism live
(4) Niche is the functional role played by the organism where it lives
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The sequencing of the entire genome (the totality of all genes) of an organism was completed in 1996. The organism was:
(d) The sequencing of the entire gensome (the totallity of all genes) was completed in 1996 of Plasmodium vivax.
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With reference to the food chains in ecosystems, which of the following kinds of organism is/are known as decomposer organism/organisms?
(b) Bacteria and Fungi both are known as decomposer organisms. Bacteria are important decomposers; they can break down any kind of organic matters. Fungi are primary decomposers, they not only...
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Assertion (A). Hydrazine contains nitrogen but does not give Lassaigne’s test for nitrogen.
(B)If both assertion and reason are true, but reason is not the true explanation of the assertion.
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Which one of the following was probed by the Liberhan Commission? (a) Test Cricket Match Fixing
(d) The Liberhan Commission was commissioned by the Government of India to investigate the destruction of the disputed structure Babri Masjid in Ayodhya in 1992.
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Consider the following statements: 1. Interactions between the two organism in which one organism kills
(b) In Parasitism, the parasite does not kill the host rather it derives its nutrition from the host in which the later is not affected. The interaction in which an...
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