Norepinephrine is formed by which of the following process?

I- hydroxylation followed by decarboxylation of tyrosine

II- by conversion of dopamine in presence of dopamine β -hydroxylase enzyme

TLS Online TPP Program

#Question id: 12748

#Unit 13. Methods in Biology

Name the technique which uses an enzyme that produces a colorimetric or luminescence product.

TLS Online TPP Program

#Question id: 12749

#Unit 13. Methods in Biology

What are the constituents used for isolation of bacterial plasmid DNA, RNA and plant DNA respectively?

TLS Online TPP Program

#Question id: 12750

#Unit 13. Methods in Biology

Bacterial culture was treated with SDS and NAOH then centrifuged, supernatant was decanted and treated with potassium acetate and centrifuged to get a pellet. What is the composition of the pellet?

TLS Online TPP Program

#Question id: 12751

#Unit 13. Methods in Biology

A DNA sample has a 260/280 ratio of 2. Which of the following treatments can be used to get a better purity of DNA sample?

TLS Online TPP Program

#Question id: 12752

#Unit 13. Methods in Biology

Which of the following cannot be used to remove protein contamination from nucleic acids?

TLS Online TPP Program

#Question id: 12753

#Unit 13. Methods in Biology

Property of CTAB to precipitate plant DNA is because of presence of --------- in the DNA?