Now a days insulin is extracted from.
Cattles
E. Coli
Plants
Virus
Related Questions
In the production of recombinant human insulin, which of the following is NOT a step involved?
Inserting the human insulin gene into E. coli
Culturing the E. coli to produce insulin chains
Extracting insulin directly from animal pancreases
Joining the A and B chains of insulin through disulfide bonds
Which statement is INCORRECT regarding glycosidic and peptide bonds?
Both involve a condensation reaction.
Both involve a reaction between an amino group and a carboxyl group.
Both can be cleaved by hydrolysis.
Both link monomeric units to form polymers.
What is the demerit of using bovine insulin (from cow) and porcine insulin (from pig) in diabetic patients?
It leads to hypercalcemia
It is expensive
It may cause allergic reactions
It may lead to mutations in human genome
Apart from disulfide bridges, which other interactions contribute to the overall three-dimensional structure of insulin?
Peptide bonds only
Glycosidic bonds and phosphodiester bonds
Hydrogen bonds, hydrophobic interactions, and van der Waals forces
Ionic bonds only
Why is genetically engineered insulin preferred over insulin derived from animal sources?
It reduces the risk of allergic reactions and is more readily available.
It is less effective than animal insulin.
It is more expensive to produce.
It is not as pure as animal insulin.
Insulin used for diabetes was earlier extracted from?
Liver of slaughtered cattle and pigs
Lungs of slaughtered cattle and pigs
Pancreas of slaughtered cattle and pigs
Pancreas of mice and pigs.
Which one of the following is the most suitable, medium for culture of Drosophila melanogaster?
Moist bread
Agar agar
Ripe banana
Cow dung
Which of the following statements are false?
I. Insulin for curing diabetes, used to be extracted from the pancreas of slaughtered pig and cattle
II. Animal insulin is slighty different from the human insulin
III. Animal insulin causes some undesirable side effects such as allergy
IV. Bacteria cannot be made to synthesise insulin from its gene because of the presence of introns
Choose the correct option
I and II only
II and III only
III and IV only
IV only
If crossing over did NOT occur during meiosis, what would be the most likely consequence?
Increased genetic variation in offspring
No change in genetic variation
Faster cell division
Reduced genetic variation in offspring
Which of the following peptide chain is removed during the maturation of proinsulin into insulin?
A-chain (21 amino acid)
B-chain (30 amino acid)
C-chain (33 amino acid)
A and B chain
