27.22(b)Cytidine is present in RNA and so is a nucleoside of D-ribose. The base is cytosine.(c)Guanosine is present in RNA and so is a guanine nucleoside of D-ribose.27.23Table 27.4 in the text lists the messenger RNA codons for the various amino acids. The codons forvaline and for glutamic acid are:Valine:GUUGUAGUCGUGGlutamic acid:GAAGAGAs can be seen, the codons for glutamic acid (GAA and GAG) are very similar to two of the codons(GUA and GUG) for valine. Replacement of adenine in the glutamic acid codons by uracil causesvaline to be incorporated into hemoglobin instead of glutamic acid and is responsible for the sickle
This is the end of the preview. Sign up
access the rest of the document.
This note was uploaded on 10/03/2011 for the course CHM 2210 taught by Professor Reynolds during the Fall '01 term at University of Florida.