Question

use the codon chart below to answer questions 6 - 9.

1. given the following nucleotide sequence, what is the name for this amino acid?
2. given the following nucleotide sequence, what is the name for this amino acid?
3. given the following nucleotide sequence, what are the amino acid names?
4. now given this nucleotide sequence with the error, what are the new amino acids? (use a comma to separate amino acids)

b.h.1: cellular genetics
for questions 10 - 13, match the base pair to the correct nucleotide.

1. guanine in dna pairs with:
2. thymine in dna pairs with:
3. adenine in rna pairs with:
4. cytosine in rna pairs with:

word bank
adenine
cytosine
guanine
thymine
uracil

Explanation:

Step1: Locate codon in chart

For question 6, find codon AGU. First nucleotide A, second G, third U.

Step2: Identify amino acid

From the codon chart, AGU codes for Serine.

Step3: Locate codon in chart

For question 7, find codon UAC. First nucleotide U, second A, third C.

Step4: Identify amino acid

From the codon chart, UAC codes for Tyrosine.

Step5: Split into codons

For question 8, sequence AGGC AU. Split into AGG and CAU.

Step6: Locate codons in chart

AGG: First A, second G, third G → Arginine. CAU: First C, second A, third U → Histidine.

Step7: Split into codons

For question 9, sequence AUG UAA G UUU UGG C. Split into AUG, UAA, G (invalid, skip), UUU, UGG, C (invalid, skip).

Step8: Locate codons in chart

AUG → Methionine. UAA → Stop (no amino acid). UUU → Phenylalanine. UGG → Tryptophan.

Step9: Base - pairing rules

For question 10, in DNA, Guanine pairs with Cytosine.
For question 11, in DNA, Thymine pairs with Adenine.
For question 12, in RNA, Adenine pairs with Uracil.
For question 13, in RNA, Cytosine pairs with Guanine.

Answer:

1. Serine
2. Tyrosine
3. Arginine, Histidine
4. Methionine, Phenylalanine, Tryptophan
5. Cytosine
6. Adenine
7. Uracil
8. Guanine