In Figure 12-5, two items have been circled for you. Identify which is the codon and identify which is the nucleotide.

Vessels draining the myocardium of the heart, open primarily ,into which chamber?

14. which of the following codons code for threonine? a. ucg b. ugu c. cga d. aca

Which of the following is an advantage of using embryonic stem cells in medical research? a. the use of embryonic stem cells is much less expensive than the use of adult stem cells. o b. no living tissue is damaged when scientists use embryonic stem cells. o c. embryonic stem cells are able to differentiate into a wider range of cells than adult stem cells. d. there is no controversy surrounding the use of embryonic stem cells.