Concept explainers
(a)
Interpretation:
The mRNA code for the peptide,
Concept introduction:
The term DNA stands for deoxyribonucleic acid. Deoxyribonucleic acid is the most important
Answer to Problem 27.20P
The mRNA the codes for
Explanation of Solution
The given peptide chain is shown below.
The triplet codon for the amino acid
The triplet codon for the amino acid
The triplet codon for the amino acid
Therefore, the codes for
The next amino acid is
The triplet codon for the amino acid
The triplet codon for the amino acid
The triplet codon for the amino acid
Therefore, the codes for
The next amino acid is
The triplet codon for the amino acid
The triplet codon for the amino acid
The triplet codon for the amino acid
Therefore, the codes for
The next amino acid is
The triplet codon for the amino acid
The triplet codon for the amino acid
The triplet codon for the amino acid
Therefore, the codes for
The next amino acid is
The triplet codon for the amino acid
The triplet codon for the amino acid
The triplet codon for the amino acid
Therefore, the codes for
The mRNA code for the given peptide. The codes for
(b)
Interpretation:
The DNA code for the peptide,
Concept introduction:
The term DNA stands for deoxyribonucleic acid. Deoxyribonucleic acid is the most important biomolecule that stores genetic information of a living organism. In other words, DNA is the blueprint of all organisms. The DNA first synthesizes RNA by the process of transcription and then the RNA synthesizes the proteins by the process of translation.
Answer to Problem 27.20P
The DNA codes for
Explanation of Solution
In the case of DNA, thymine base is present instead of uracil base rest remains the same. The given peptide chain is shown below.
The triplet codon for the amino acid
The triplet codon for the amino acid
The triplet codon for the amino acid
Therefore, the codes for
The next amino acid is
The triplet codon for the amino acid
The triplet codon for the amino acid
The triplet codon for the amino acid
Therefore, the codes for
The next amino acid is
The triplet codon for the amino acid
The triplet codon for the amino acid
The triplet codon for the amino acid
Therefore, the codes for
The next amino acid is
The triplet codon for the amino acid
The triplet codon for the amino acid
The triplet codon for the amino acid
Therefore, the codes for
The next amino acid is
The triplet codon for the amino acid
The triplet codon for the amino acid
The triplet codon for the amino acid
Therefore, the codes for
The DNA code for the same peptide. The codes for
(c)
Interpretation:
The anticodon sequence for
Concept introduction:
The tRNA is used in the synthesis of protein. The tRNA has a cloverleaf shape structure. It contains two specific sites, one is anticodon loop that attaches to mRNA and other is
Answer to Problem 27.20P
The anticodon sequence for
Explanation of Solution
The triplet codon for the amino acid
The triplet codon for the amino acid
The triplet codon for the amino acid
Therefore, the codes for
The anticodon sequence for
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Chapter 27 Solutions
Organic Chemistry
- Suppose that 28% of the nucleotides in a DNA molecule are deoxythymidine 5'-monophosphate, and that during DNA replication the percentage amounts of available nucleotide bases art 22% A, 22% C, 28% G. and 28% T. Which base would be depleted first in the replication process?arrow_forwardGive an mRNA sequence that will code for the synthesis of metenkephalin. Tyr-Gly-Gly-Phe-Metarrow_forwardWrite the base sequence for the mRNA that would be formed during transcription from the DNA strand with the base sequence GCCATATTG.arrow_forward
- Must the ratio of guanine to cytosine be 1:1 in RNA? Explain.arrow_forwardSuppose that 30% of the nucleotides in a DNA molecule are deoxyguanosine 5'- monophosphate, and that during DNA replication the percentage amounts of available nucleotide bases are 20% A, 20% C. 30% G. and 30% T. Which base would be depleted first in the replication process?arrow_forward22-42 (a) How many atoms of the peptide bond lie in the same plane? (b) Which atoms are they?arrow_forward
- 3. Which amino acid is selected by the mRNA codon GAA? alanine glutamic acid histidine tyrosinearrow_forwardThis is a segment of a nucieic acid. (a) is this a segment of RNA DNA and name each nucieotide. (g) NH2 но NH2 0=P-O NH2 H H 0=P-O O=P-Oarrow_forwardDNA Replication1) Construct the complementary strand of DNA (strand II) that would pair with the DNA strand I sequence below. Remember that nucleotides are always added in the 5 prime to 3 prime direction. The base pairing rules are: DNA DNAadenine (A) always bonds with thymine (T) thymine (T) always bonds with adenine (A) guanine (G) always bonds with cytosine (C) cytosine (C) always bonds with guanine (G) STRAND I: 3’ T A C T A T A G T C T G T C T C C C A C T 5’ STRAND II: 5’ 3’arrow_forward
- Which statement best explains the chemical differencesbetween DNA and RNA? (a) DNA has two different sugarsin its sugar–phosphate backbone, but RNA only has one.(b) Thymine is one of the DNA bases, whereas RNA’s correspondingbase is thymine minus a methyl group. (c) TheRNA sugar–phosphate backbone contains fewer oxygenatoms than DNA’s backbone. (d) DNA forms double helicesbut RNA cannot.arrow_forwardThe chain of hemoglobin is 146 amino acids long. What would be the length (in nucleotides) of the mRNA molecule required to direct the synthesis of the polypeptide chain and why?arrow_forward#41 and #42arrow_forward
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