Question

figure 1 tay - sachs disease pedigree
which of these are not one of the nitrogenous bases in dna nucleotides? * 1 point
adenine
uracil
guanine
thymine
translate the following codon sequence to order the amino acids from first to third: aug - agu - uga * 3 points
amino acid table

Explanation:

1. First question: DNA nucleotides have four nitrogen - containing bases: adenine (A), guanine (G), cytosine (C), and thymine (T). Uracil (U) is found in RNA, not DNA.
2. Second question: Using the standard genetic code, AUG codes for methionine, AGU codes for serine, and UGA is a stop codon which does not code for an amino - acid. So the first amino - acid is methionine and the second is serine.

Answer:

1. B. uracil
2. Methionine, Serine