Say you want to make a 500mL solution of HEPES buffer. Your desired final concentration is 100mM. Your lab has a 2M stock solution of HEPES buffer already made. What volume of 2M stock solution should you use to make 500mL of 100mM buffer? 25ml
250mL
10mL
10L

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."

bc blah

explanation:

bc blah

a researcher conducts an experiment on the secretion of a particular hormone in mice. scientists inject mice with a substance that stimulates the production of the hormone. the scientists then test the levels of hormones produced by the mice. the tool used to measure the hormones consistently detects the levels at 10 points lower than the actual hormone levels in the mice. this tool makes measurements, but the measurements aren't .

explanation:

no u