Microtubules are assembled from the protein ____
a. keratin
b. myosin
c. laminin
d. actin
e. tubulin
E
Biology & Microbiology
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Bulk flow in the phloem tissue is mostly downward whereas bulk flow in xylem is mostly:
A. sideways B. also downward C. very little bulk flow occurs in xylem D. flow of sugars E. upward
Biology & Microbiology
All of the following types of chemical bonds are responsible for maintaining the tertiary structure of
this polypeptide except:a.
ionic bonds.
b. hydrogen bonds.
c. hydrophobic interactions.
d. disulfide bonds.
e. peptide bonds.
Biology & Microbiology
What is a pure culture?
What will be an ideal response?
Biology & Microbiology
When a seed germinates, the embryo emerges from its dormancy and begins which phase of the plant life cycle?
A. Alternate generation B. Monocot generation C. Sporophyte generation D. Gametophyte generation E. Dicot generation
Biology & Microbiology