Which type of organisms can eliminate excess nitrogen by the direct excretion of ammonia?

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#Question id: 23086

#Unit 12. Applied Biology

______________ is an example of a physical method of sterilization, 

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#Question id: 2649

#Unit 2. Cellular Organization

Which operon behaves similar to Bacillus subtilis trp operon in terms of attenuation?

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#Question id: 9285

#Unit 6. System Physiology – Plant

Non-O2-evolving (anoxygenic) organisms, contain only a single photosystem such as

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#Question id: 754

#Unit 1. Molecules and their Interaction Relevant to Biology

If the twisting of the DNA is in the same direction as that of the double helix, that is the helix is twisted up before closure, this form of super coiling is known as;

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#Question id: 3842

#Unit 3. Fundamental Processes

Which of the following statements correctly describes the difference between the leading strand and the lagging strand in DNA replication?