Where in the body does the circadian clock act to control of vascular disease?
a. Systems under positive feedback control.
b. Systems under negative feedback control.
c. Systems that develop early in life.
d. Systems that develop later in life.
e. It is not known.
E
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What feature of RNA is directly or indirectly responsible for the unique structural properties of RNA?
What will be an ideal response?
Which of the following is/are essential for formation of the cleavage furrow during cytoplasmic division in animal
cells?
a. a contractile ring b. Golgi body vesicles c. ATP molecules d. a contractile ring and Golgi body vesicles e. a contractile ring and ATP molecules
Compared with eukaryotic chromosomes, bacterial chromosomes are ________
A) large, mainly organized in single-gene transcription units without introns B) large, triple-helix, Z-DNA, organized in single gene units with introns C) small, mainly organized in single-gene transcription units with introns D) large, mainly organized in polygenic transcription units without introns E) small, with high gene density
Answer the following questions true (T) or false (F)
1. A reversible reaction is one in which the forward and reversible reactions are both possible such as: AB ? A + B and A + B ? AB. 2. A phosphodiester bond links a fatty acid to a glycerol molecule to form a fat or an oil. 3. Spirochetes move in a corkscrew-rotary motion due to a specialized periplasmic flagellum.