#Question id: 3029
#Unit 2. Cellular Organization
Which of the following obtain energy by oxidizing inorganic substances; energy that is used, in part, to fix CO2?
#Question id: 10310
#Unit 6. System Physiology – Plant
Which of the following enzyme in the kreb’s cycle function as an allosteric enzyme found in matrix space?
#Question id: 29530
#Unit 6. System Physiology – Plant
Plant species produce cysteine protease, which disrupt the
#Question id: 5318
#Unit 11. Evolution and Behavior
Humans have 23 pairs of chromosomes, and chimps have 24 pairs of chromosomes. What is the most likely explanation for these differences in human and chimp genomes?
#Question id: 4114
#Unit 3. Fundamental Processes
Splice-site recognition is prone to two kinds of errors. First, splice sites can be skipped, with components bound at, for example, a given 5’ splice site pairing with those at a 3’ site beyond the correct one. Ways in which the accuracy of splice-site selection can be enhanced are as
A. The factors that recognize that site are transferred from the polymerase carboxy-terminal “tail” onto the RNA. Once in place, the 5’ splice site components are poised to interact with those other factors that bind to the next 3’ splice site to be synthesized.
B. SR (serine–arginine-rich) proteins bind to sequences called exonic splicing enhancers (ESEs) within the exons. SR proteins bound to these sites recruit the splicing machinery to the nearby splice sites to ensure correct splicing
C. By recruiting splicing factors to each side of a given exon, this process encourages the so-called “exon definition, contribute to correct splicing
D. Alternative splicing is intentional missplicing mechanism
Which of the following is INCORRECT?