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: 2938

#Unit 2. Cellular Organization

Which of the following inhibit(s) cyclin A/Cdk2 activity?

TLS Online TPP Program

#Question id: 5342

#Unit 8. Inheritance Biology

Women having normal color vision, normal pigmentation and A blood group whose father is color blindness, albinism and O blood group will marry with men having colorblind, albinism and O blood group. What is probability of their first child will colorblindness son, normal pigmentation and O blood group? 

TLS Online TPP Program

#Question id: 928

#Unit 1. Molecules and their Interaction Relevant to Biology

 Which enzyme is the major regulatory control point for B-oxidation?

TLS Online TPP Program

#Question id: 16122

#Unit 7. System Physiology – Animal

Fever is an abnormal elevation of body temperature. Following statements are regarding to the cellular mechanism of fever.

A. Pyrogens produce fever by increasing the hypothalamic set-point temperature.

B. the mechanism of pyrogen action is increased production of interleukin-1 (IL-1) in phagocytic cells.

C. IL-1 then acts on the anterior hypothalamus to increase local production of prostaglandins, which increase the set-point temperature.

D. IL-1 then acts on the posterior hypothalamus to increase local production of prostaglandins, which increase the set-point temperature.

E. IL-1 then acts on the posterior hypothalamus to increase local production of prostaglandins, which decrease the set-point temperature.

Which of the following combination is correct?

TLS Online TPP Program

#Question id: 4948

#Unit 11. Evolution and Behavior

RNA molecules can both carry genetic information and be catalytic. This supports the proposal that