JEE Main 202628 JanuaryMorning Shift
- Exam
- JEE Main
- Year
- 2026
- Date
- 28 January
- Shift
- Morning Shift
- Subject
- Chemistry
- Chapter
- Biomolecules
JEE Main 2026 · 28 January · Morning Shift · Chemistry · Biomolecules
In the given pentapeptide, find out an essential amino acid (Y) and...
In the given pentapeptide, find out an essential amino acid and the sequence present in the pentapeptide:
Choose the correct answer from the options given below:
Choose the correct answer from the options given below:
Options
- A(
)(Y) Sequence Serine Ser-Asp-Thr-Ala-Gly - B(
)(Y) Sequence Serine Thr-Ser-Asp-Ala-Gly - C(
)(Y) Sequence Threonine Ser-Thr-Asp-Gly-Ala - D(
)(Y) Sequence Threonine Thr-Ser-Asp-Gly-Ala
Correct answer
D. (
| (Y) | Sequence |
| Threonine | Thr-Ser-Asp-Gly-Ala |
Step-by-step solution
Among the amino acids present (Serine, Aspartic acid, Glycine, Alanine, and Threonine), only Threonine is classified as an essential amino acid; the others are non-essential or conditionally essential. Therefore, Y = Threonine.
Examining the peptide sequence shown in the structure and cross-referencing with the provided options, the sequence is Thr-Ser-Asp-Gly-Ala from N-terminus to C-terminus.
The answer is option (4): Y is Threonine with sequence Thr-Ser-Asp-Gly-Ala.
Examining the peptide sequence shown in the structure and cross-referencing with the provided options, the sequence is Thr-Ser-Asp-Gly-Ala from N-terminus to C-terminus.
The answer is option (4): Y is Threonine with sequence Thr-Ser-Asp-Gly-Ala.