#Question id: 689
#Unit 1. Molecules and their Interaction Relevant to Biology
In the diagram below, the plane drawn behind the peptide bond indicates the:
A) absence of rotation around the C—N bond because of its partial double-bond character.
B) plane of rotation around the Ca—N bond.
C) region of steric hindrance determined by the large C=O group.
D) region of the peptide bond that contributes to a Ramachandran plot.
Which of the following best represents the backbone arrangement of two peptide bonds?
#Question id: 3959
#Unit 3. Fundamental Processes
What do telomeres do
#Question id: 13220
#Unit 6. System Physiology – Plant
#Question id: 8775
#Unit 9. Diversity of Life Forms
Use the following information to answer the question. Paulinella chromatophora is one of the few cercozoans that is autotrophic, carrying out aerobic photosynthesis with its two elongated "chromatophores." The chromatophores are contained within vesicles of the host cell, and each is derived from a cyanobacterium, though not the same type of cyanobacterium that gave rise to the chloroplasts of algae and plants. A crucial photosynthetic gene of the cyanobacterium that gave rise to the chromatophore is called psaE. This gene is present in the nuclear genome of the cercozoan, but is not in the genome of the chromatophore. This is evidence of ________.
#Question id: 32339
#Unit 2. Cellular Organization