Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEET2020ZoologyBiotechnology and Its ApplicationsActual

Which of the following statements is not correct?

Options

  1. AThe proinsulin has an extra peptide called C-peptide.
  2. BThe functional insulin has A and B chains linked together by hydrogen bonds.
  3. CGenetically engineered insulin is produced in E.Coli .
  4. DIn man insulin is synthesised as a proinsulin

Correct answer

B. The functional insulin has A and B chains linked together by hydrogen bonds.

Step-by-step solution

Insulin is a relatively small protein, comprising two polypeptides, one of 21 amino acids (the A chain) and the other of 30 amino acids (the B chain) that are linked together by disulphide bonds/bridges formed between cysteine amino acids.

Practice Biotechnology and Its Applications on Quantrex Academy →

More from Biotechnology and Its Applications

The inactive form of Bt toxin is converted to the active form in the insect gut __________. 2026The human protein named - 1 -antitrypsin, obtained from transgenic animals, is used for the treatment of : 2026The toxin proteins, isolated from Bacillus thuringiensis , coded by which of the following genes would control cotton bollworms and corn borer, respectively ? 2026Given below are two statements : Statement I : Transfer RNAs and ribosomal RNA do not interact with mRNA. Statement II : RNA interference (RNAi) takes place in all eukaryotic organ 2025Silencing of specific mRNA is possible via RNAi because of 2025Which of the following genetically engineered organisms was used by Eli Lilly to prepare human insulin? 2025Match List I with List II : Choose the correct answer form the options given below: 2024The B t toxin in genetically engineered B t cotton kills the pest by: 2024 Full Biotechnology and Its Applications list All NEET PYQs