The primary oocyte will mature into a(n) ________
a. sporophyte
b. spermatocyte
c. gametophyte
d. spermatid
e. egg
e
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Which muscle contraction is involuntary?
A. cardiac only B. smooth only C. cardiac and smooth D. skeletal only E. cardiac, smooth, and skeletal
Which type of RNA is found only in eukaryotes?
A) mRNA B) tRNA C) rRNA D) snRNA E) All of these
How do radioactive isotopes differ from isotopes?
A) Radioactive isotopes have more neutrons than do isotopes. B) Radioactive isotopes are stable; isotopes are unstable. C) Radioactive isotopes have fewer neutrons than do isotopes. D) Radioactive isotopes are unstable; isotopes are stable.
In order for a person's DNA to be used for his or her identification, which of the following tools/techniques must also be used in the process?
a) PCR b) gel electropheresis c) restriction enzymes d) All of the above techniques/tools must be used. e) Only a) and c) must be used.