During DNA replication, what is the function of RNA primase?
What will be an ideal response?
RNA primase provides a free 3'-OH upon which DNA polymerization depends.
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Which two types of tissue are responsible for rigid support in a plant?
a. cork and fibers b. phloem and fibers c. phloem and xylem d. xylem and fibers
Your favorite tree is dying, and you find that there is a fungal infection on its leaves. If you were to look at the cells of
the infected leaves of your tree, which structure(s) would you expect to find?
a. mycorrhizae b. arbuscules c. haustoria d. both mycorrhizae and arbuscules e. both mycorrhizae and haustoria
A fragment of DNA or RNA, labeled with a tracer, used for genetic studies is called a ________
a. probe b. genome c. cloning vector d. chromosome e. nucleotide
The study on mutations in germ-line cells indicates all of the following EXCEPT
a. some mutations are inherited from our parents b. some mutations arise as new mutations in the germ-line c. the mutation rates are the same in all families d. more families need to be studied to draw any real conclusions e. this information can be used in medical research