Biotechnology (GATE)

Correct answer. It is not a pair of equivalent matrices. PAM200 is equivalent to Blosum52. PAM250 is equivalent to Blosum45.

Correct answer.
Inactivated Sendai virus, Polyethylene glycol and Ca²⁺ at alkaline pH are all protoplast fusion inducing agents.

Correct answer. Glutamine synthase is made up of twelve polypeptide chains.

Correct answer. RNA polymerase is made up of five polypeptide chains.

Correct answer. Both the statements are false.
All the blood grouping reactions are agglutination reactions.
The basis for blue-white screening with PUC vectors is intraallelic complementation.

Plasocyanin is an example of copper containing metalloprotein.

Correct answer. Sorbose and psicose are examples of ketohexoses.

Yes, it is the correct answer.
Actinomycin D is a polypeptide antitumor antibiotic isolated from soil bacteria of the genus Streptomyces.
Amphotericin B is an antifungal drug often used intravenously for systemic fungal infections.
Rifamycin is typically used to treat mycobacterium infections, including tuberculosis and leprosy. 
Tinidazole is an anti-parasitic drug used against protozoan infections.

Correct answer.
Single letter code for aspartate is D.
Single letter code for glutamate is E.
Single letter code for asparagine is N.
Single letter code for glutamine is Q.

Correct answer. The two alpha-carbon atoms attached to C-N are always trans to each other (on the opposite side of the peptide linkage).

Nisin is a polycyclic antibacterial peptide with 34 amino acid residue and is used as a food preservative.

Correct answer.
Amikacin, Gentamicin, Kanamycin all are aminoglycoside antibiotics.

Correct answer.
Immunoglobulin G is an example of glycoprotein.
Casein is an example of phosphoprotein.
Succinate dehydrogenaseis an example of flavoprotein.
Hemoglobin is an example of hemoprotein.

Correct answer.
Isoelectric point of urease is 5.0.
Isoelectric point of hemoglobin is 6.8.
Isoelectric point of chymotrypsinogen is 9.5.
Isoelectric point of lysozyme is 11.0.

Dietary precursor of coenzyme A is vitamin B₅.
Dietary precursor of flavinadinine dinucleotide is vitamin B₁₂.
Dietary precursor of thiamine pyrophosphate is vitamin B₁.
Dietary precursor of pyridoxal phosphate is vitamin B₆.