More than ___ of all well-studied proteins contain a single structural domain. The members of these single-domain families can have different amino acid sequences but fold into a protein with a similar shape.
举一反三
- What about inserting a base into the coding region of a gene？ A: No impact B: It will change all amino acid sequences of the protein downstream of the insertion point C: Depending on the insertion point, it may have different effects on the protein D: An amino acid will be inserted into the protein sequence E: Three amino acids will be inserted into the protein sequence
- What<br/>about inserting a base into the coding region of a gene?() A: No<br/>impact B: It<br/>will change all amino acid sequences of the protein downstream of the<br/>insertion point C: Depending<br/>on the insertion point, it may have different effects on the protein D: An<br/>amino acid will be inserted into the protein sequence E: Three<br/>amino acids will be inserted into the protein sequence
- Many proteins can be grouped into protein families, in which each family member has an amino acid sequence and a three-dimensional conformation that closely ________ those of the other family members.
- All cells have a cell membrane made of proteins and ( ). A: lipids B: glucose C: amino acid D: fructose
- For a typical protein length of 300 amino acids, more than ______ different polypeptide chains could theoretically be made