How is a stolon distinguished from a root?
a. a stolon has an epidermis-- a root does not
b. a root has a cortex --- a stolon does not
c. a stolon has nodes -- a root does not
d. a root has vascular tissue-- a stolon does not
e. a stolon has an epidermis -- a root does not
C
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What plant secondary metabolite was isolated from the Cinchona tree to fight malaria?
A. digitalis B. penicillin C. acacia D. taxol E. quinine
A(n) ____ environment is ideal for plant cells, while a(n) ____ environment is best for animal cells
a. isotonic; hypotonic b. hypotonic; isotonic c. hypotonic; hypertonic d. hypertonic; isotonic e. isotonic; isotonic
Imagine that a cell has a genetic mutation so that the primase enzyme is unable to make RNA strands
Assuming that all of the other enzymes directly involved in DNA replication are still functional in these cells, how much of the process of DNA replication would you expect to see in these cells?
a. The leading strand would be synthesized, but not the lagging strand. b. None of it at all, no part of the DNA replication process could occur. c. The DNA helix would be unwound by helicase, but no new strands will be produced at all. d. Both the leading and lagging strand would be synthesized, but pieces of discontinuous strands would not be joined together. e. DNA replication would still proceed completely, since RNA strands are not part of the final product of DNA replication.
The products of both the BRCA1 and BRCA2 genes bind to a protein involved in repair of
____________________ (what kind of DNA damage?). Fill in the blank(s) with the appropriate word(s).