#Question id: 2636
#Unit 1. Molecules and their Interaction Relevant to Biology
Which of the following events occur when E. coli is starved for tryptophan?
I. The ribosome translates leader peptide completely
II. Transcription reads through attenuator into trp EDCBA
III. Tryptophanyl tRNA is not formed
IV. A stem loop structure involving regions 3 and 4 is formed at attenuator site
#Question id: 10858
#Unit 10. Ecological Principles
Which of the following is an example of obligatory symbiotic mutualism?
#Question id: 11634
#Unit 8. Inheritance Biology
Given below, is the result of a complementation test for six independent mutants (A to H) '+' represents complementation; '-' represents noncomplementation Based on the above, which one of the following conclusions is correct?
#Question id: 28938
#Unit 7. System Physiology – Animal
Central diabetes insipidus is caused by___
#Question id: 1928
#Unit 4. Cell Communication and Cell Signaling
Which of the following is a type of tumor that is NOT derived from hematopoietic cells?