For the electronic transition from n = 2 to n = 1 which one of the following will produce shortest wave length?

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#Question id: 3794

#XL - Q Biochemistry

An input of energy is not required for which of the following steps of replication?

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#Question id: 418

#XL - R Botany

Biological oxidation-reduction reactions always involve:

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#Question id: 4596

#XL - S Microbiology

In a hypothetical environment, fishes called pike-cichlids are visual predators of large, adult algae-eating fish (in other words, they locate their prey by sight). The population of algae-eaters experiences predatory pressure from pike-cichlids. Which of the following is least likely to result in the algae-eater population in future generations?

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#Question id: 20182

#XL - P Chemistry

Which is not true with respect to cathode rays?

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#Question id: 19968

#XL - P Chemistry

In an atom with 2K, 8L, 11M and 2N electrons the number of electrons with m= 0 ; s = + ½ are