A50 î¼l pcr reaction contains two oligonucleotide primers. each primer is present in the pcr reaction at an initial concentration of 1î¼m.

a. how many moles of each primer are present in the pcr reaction?
b. how many molecules of each primer are present in the pcr reaction?
c. if the size of the pcr product in the above reaction is 500 bp, and the pcr reaction yields 2î¼g of the product, how many molecules of each primer are consumed by the pcr reaction?
hint: assume the average molecular weight of a nucleotide base pair is 650 daltons.
d. what ratio (percentage) of each primer was consumed by the pcr reaction

Embryonic stem cells are cells derived from an embryo. these cells can be used to create new tissues for patients suffering from certain illnesses and disorders. which statement best summarizes why the use of embryonic stem cells could be seen as unethical? a. some people consider embryos to possess rights equal to those of fully developed human beings. b. extracting stem cells from embryos is a very energy-intensive process, which consumes resources that could be used elsewhere. c. embryos are difficult to obtain, so the monetary cost of using them for research outweighs their benefit. d. the process of extracting stem cells from embryos generates biohazardous waste that cannot be safely disposed of.