Please fill in all of the blanks. Protein synthesis actually begins in the _1_ when DNA transcribes __2__.  Messenger-RNA is a copy of a __3__, which is the instructions for how to make a __4__.  After modifications are made, the mRNA leaves the nucleus and travels to the __5__.  As each __6__ of the mRNA is read by the ribosomes, the proper __7__ is brought to the ribosome.  Molecules of __8__ are responsible for delivering __9__ to the ribosomes.  As the amino acids are lined up, they are joined together by __10__ bonds.  ​

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.