In the processes of endocytosis and exocytosis, a molecule is moved across the plasma membrane by a protein, which changes shape or orientation.
a. true
b. false
Answer: b. false
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Given that the nature of DNA replication in eukaryotes is not as well understood as in prokaryotes, (a) present a description of DNA (chromosome) replication as presently viewed in eukaryotes and (b) state the differences known to exist between
prokaryotic and eukaryotic DNA replication.
? The tertiary structure of a protein is ____.
a. the amino acid sequence in a polypeptide chain
b. generated by the formation of bonds between amino acids
c. formed by a protein region folding on itself
d. formed by the interaction of two or more polypeptide chain
e. generated by bonding and folding of ribosomes attached to the endoplasmic reticulum
The Quellung reaction is a test to detect
A) hemolysins. B) kinases. C) pyrogens. D) capsule antigens. E) protein M.
Manufactures a 10-12 base segment of RNA
A. DNA ligase B. Primase C. Topoisomerase D. DNA polymerase I E. DNA polymerase III