#Question id: 4709
#Unit 11. Evolution and Behavior
The horizontal axis of the cladogram depicted below is a timeline that extends from 100,000 years ago to the present; the vertical axis represents nothing in particular. The labeled branch points on the tree (V-Z) represent various common ancestors. Let's say that only since 50,000 years ago has there been enough variation between the lineages depicted here to separate them into distinct species, and only the tips of the lineages on this tree represent distinct species.
In Darwin's tree of life, each fork in the tree represents ________.
#Question id: 3822
#Unit 3. Fundamental Processes
State whether the following statements is true/false regarding DNA replication.
1. Proteins bind to both origin sites and termination sites on DNA during DNA replication.
2. In the Sanger method for DNA sequencing, the gels are read from bottom to top, since the smallest fragments travel farthest in the sequencing gel.
3. DNA polymerase I which is inhibited by dideoxynucleoside triphosphates is used in the Sanger method for DNA sequencing.
4. Sanger DNA sequencing requires inhibition of DNA polymerization by a specific dideoxynucleoside every time it is copied in the replication process.
5. The Klenow fragment can be used for DNA sequencing if proteins such as SSB protein are added.
#Question id: 27626
#Unit 1. Molecules and their Interaction Relevant to Biology
For strong hydrogen bond length varies among different secondary structure so which of the following is correctly representing the length of hydrogen bond in alpha helices
#Question id: 11823
#Unit 6. System Physiology – Plant
_____A________the enzyme that catalyzes the conversion of AdoMet to ACC, while ___B_____ catalyzes the conversion of ACC to ethylene
#Question id: 412
#Unit 1. Molecules and their Interaction Relevant to Biology
All of the following contribute to the large, negative, free-energy change upon hydrolysis of “high-energy” compounds except: