Nod genes, which NodD activates, code for nodulation proteins, most of which are involved in the biosynthesis of Nod factors such as;

 a) Nod factors are lipochitin oligosaccharide signal molecules

 b) Nod factor shave a chitin β-1→ 4-linked N-acetyl-D-glucosamine backbone

 c) These N-acetyl-D-glucosamine backbone varying in length from three to six sugar units

 d) A fatty acid chain on the C-2 position of the nonreducing sugar determine the length and degree of saturation of the fatty acyl chain by NodL

 Which of the following is incorrect?

TLS Online TPP Program

#Question id: 15562

#Unit 12. Applied Biology

Deletion of which gene not only was accompanied by the abolition of antibiotic formation but also severely impaired growth on agar media.

TLS Online TPP Program

#Question id: 28154

#Unit 1. Molecules and their Interaction Relevant to Biology

Q. Isotope, Natural Abundance, and  spin (I) are given, and some statement are made

a. 12C=98.9%=NMR-active

b. 16O=99.9%=NMR-active

c. 12C=98.9%=NMR-inactive

d. 16O=98.9%=NMR-inactive

Which of the following is true

TLS Online TPP Program

#Question id: 2940

#Unit 2. Cellular Organization

Chk1is activated by:

TLS Online TPP Program

#Question id: 131

#Unit 1. Molecules and their Interaction Relevant to Biology

The RS system of nomenclature describes

TLS Online TPP Program

#Question id: 122

#Unit 1. Molecules and their Interaction Relevant to Biology

An unknown lipid is treated with a mixture of phospholipases A1, A2, C and D. Since no glycerol is formed after this treatment, the lipid is most likely