#Question id: 15840
#Unit 8. Inheritance Biology
#Question id: 3534
#Unit 8. Inheritance Biology
Start with a collection of mutants obtained using selections or screens and then characterize their wild functions at the molecular level called ----A------, alternatively, start with a set of specific DNA sequences, mutate them, and observe the phenotypes called --B-----.
#Question id: 351
#Unit 1. Molecules and their Interaction Relevant to Biology
If the cytoplasm of a cell is at pH 7, and the mitochondrial matrix is at pH 8, then the concentration of H+ ions ________.
#Question id: 27686
#Unit 10. Ecological Principles
Which of the following factors are involved to determine the realized niches of organisms?
#Question id: 2646
#Unit 2. Cellular Organization
How many stem loop structures play important role in complete system of tryptophan gene regulation?