Concept explainers
Interpretation:
The sequence of amino acids encoded by the DNA sequence
Concept introduction: The nucelotide triplet that encodes an amino acids is called codon. Each group of three nucleotides encodes one amino acid. There are 20 amino acid present which are encoded by differnet codon. DNA sequence is always synthesized in
The rule of base pairing are: A purine base Adenine
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Chapter 24 Solutions
Chemistry & Chemical Reactivity
- Which of the following describes the primary structure of proteins? a. The collective shape assumed by all of the chains in a protein containing multiple chains. b. The folding of an individual protein molecule. c. The regular repeated shape of the protein molecules backbone. d. The sequence of amino acids bonded together by peptide bonds.arrow_forwardThere are six isomeric tripeptides that contain valine, tyrosine, and glycine. Name them using both three- and one-letter abbreviations.arrow_forwardWhat element is always present in proteins that is seldom present in carbohydrates and lipids?arrow_forward
- 22-62 Distinguish between intermolecular and intramolecular hydrogen bonding between backbone groups. Where in protein structures do you find one, and where do you find the other?arrow_forward21-90 To what extent do lipids and carbohydrates play structural roles in living organisms? Do these roles differ in plants and in animals?arrow_forwardWhat functional groups are found in all amino acids? How many different amino acids are found in naturally occurring proteins?arrow_forward
- Is the primary, secondary, or tertiary structure of a protein changed by denaturation?arrow_forwardThe base sequences in mRNA that code for certain amino acids are Glu: GAA, GAG Val: GUU, GUC, GUA, GUG Met: AUG Trp: UGG Phe: UUU, UUC Asp: GAU, GAC These sequences are complementary to the sequences in DNA. a. Give the corresponding sequences in DNA for the amino acids listed above. b. Give a DNA sequence that would code for the peptide trp-glu-phe-met. c. How many different DNA sequences can code for the tetrapeptide in part b? d. What is the peptide that is produced from the DNA sequence TACCTGAAG? e. What other DNA sequences would yield the same tripeptide as in part d?arrow_forwardIn a pleated sheet secondary structure for a protein a. describe the general shape of the protein backbone b. describe the general locations for the amino acid R groupsarrow_forward
- 22-89 What kind of noncovalent interaction occurs between the following amino acids? (a) Valine and isoleucine (b) Glutamic acid and lysine (c) Tyrosine and threonine (d) Alanine and alaninearrow_forward. How many possible primary structures exist for a small polypeptide containing four individual amino acids?arrow_forwarda Describe the three components of a nucleotide. b How does the structure of an RNA nucleotide differ from that of a DNA nucleotide?arrow_forward
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