29. Heredity

 A section of DNA has this base sequence: AGCGTTACCGT. A mutation in this DNA strand results in this base 

sequence: AGGCGTTACCGT. What type of mutation does this change represent?

A nonsense mutation:

The RNA species that travels from the nucleus to the cytoplasm carrying the coded message specifying the sequence of amino acids in the protein to be made is

a. mRNA

b. tRNA

c. rRNA

d. all of these