Question

to interpret this diagram, read each codon starting at the inner circle and going toward the outer circle. for example, the codon cac codes for the amino acid called histidine. 1. what amino acid does the codon aau code for? 2. what three codons signal that translation should stop? 3. is it possible for a codon to code for more than one amino acid? 4. in rna, uracil replaced what nitrogenous base that is found in dna?

Explanation:

Step1: Locate AAU in the codon - circle

Start from the inner circle and move outward to find the amino - acid corresponding to AAU.

Step2: Identify the amino - acid

From the codon - circle, AAU codes for Asparagine.

Step3: Analyze stop codons

The stop codons are UAA, UAG, and UGA.

Step4: Consider codon - amino acid relationships

Multiple codons can code for the same amino - acid due to the degeneracy of the genetic code. For example, there are multiple codons for Leucine, Serine, etc.

Step5: Recall base - pairing in nucleic acids

In DNA, the nitrogenous bases are Adenine (A), Thymine (T), Guanine (G), and Cytosine (C). In RNA, Uracil (U) replaces Thymine (T).

Answer:

1. Asparagine
2. UAA, UAG, UGA
3. Yes, due to the degeneracy of the genetic code.
4. Thymine (T)