#Question id: 10179
#Unit 6. System Physiology – Plant
A a plant to invest energy in developing multiple cell layers, they are shaped like pillars that stand in parallel columns one to three layers deep. Below the epidermis, the top layers of photosynthetic cells are called
#Question id: 4289
#Unit 3. Fundamental Processes
Match the Following
|
A. fidelity of codon recognition |
1. involves two adjacent adenine residues in the 16S rRNA component located within the A-site of the small subunit. These bases form hydrogen bonds with the minor groove of each correct base pair formed between the anticodon and the first two bases of the codon in the A-site |
|
B. kinetic selectivity |
2. Even a single mismatch in the codon–anticodon base pairing alters the position of EF-Tu, reducing its ability to interact with the factor-binding center. This, in turn, leads to a dramatic reduction in EF-Tu GTPase activity |
|
C. Accommodation |
3. When the charged tRNA is first introduced into the A-site in a complex with EF-Tu-GTP, its 30 end is distant from the site of peptide-bond formation. To participate successfully in the peptidyl transferase reaction, the tRNA must rotate into the peptidyl transferase center of the large subunit in a process |
#Question id: 11421
#Unit 10. Ecological Principles
The strength of the island biogeography model was that it generated several falsifiable predictions
A) The number of species should increase with increasing island size.
B) The number of species should decrease with increasing distance of the island from the mainland
C) The number of species on an island might remain the same, but the composition of the species should not be change
Which of the following above statement are correct?
#Question id: 28604
#Unit 2. Cellular Organization
#Question id: 7143
#Unit 5. Developmental Biology
The development of drugs to block the activity of vascular endothelial growth factor (VEGF) has been applied to the control of the growth of cancers. What is the rationale for such a strategy?