TLS Online TPP Program

#Question id: 1970


What are antigens?

#Unit 4. Cell Communication and Cell Signaling
  1. proteins found in the blood that cause foreign blood cells to clump

  2. proteins embedded in B cell membranes

  3. proteins that consist of two light and two heavy polypeptide chains

  4. foreign molecules that trigger the generation of antibodies

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TLS Online TPP Program

#Question id: 21254

#Unit 13. Advances in Biotechnology

Match the following plant sources with their secondary metabolites and medical uses;

SOURCES PLANTSECONDARY METABOLITESUSE
P. Coleus blumeii. Atropinea. Insecticidal
Q. Atropa belladonnaii. Reserpineb. Cardiac tonic
R. Trianthema portucalastrumiii. Rosamarinic acidc. Muscle relaxant
S. Digitalis lanataiv. Phytoecdysonesd. Antioxidant

TLS Online TPP Program

#Question id: 21255

#Unit 13. Advances in Biotechnology

Industrially, the most important primary metabolites are amino acids, nucleotides and vitamins, these metabolites are manufactured by__

TLS Online TPP Program

#Question id: 21256

#Unit 13. Advances in Biotechnology

Production of l-Glutamic Acid by overproducing glutamate through some microorganism__

TLS Online TPP Program

#Question id: 21257

#Unit 13. Advances in Biotechnology

Lysine is a member of the_______________of amino acids.

TLS Online TPP Program

#Question id: 21258

#Unit 13. Advances in Biotechnology

Some classes of mutants were obtained from the parental strain as the source of genetic material for transduction:
I) A strain that are resistance to thialysine
II) A strain in which both the threonine-regulated AK and HD were resistant to feedback inhibition by threonine
III) A strain is selected for ß-hydroxynorvaline Sensitive, in which HDI was sensitive to both inhibition and repression and the threonine-regulated AK was constitutively synthesized 

TLS Online TPP Program

#Question id: 21259

#Unit 13. Advances in Biotechnology

Production of l-Threonine amino acid used for feeding pigs and poultry, Starting from l-aspartate, the pathway involves five steps catalyzed by five enzymes sequence of using enzyme is that;