TLS Online TPP Program

#Question id: 20330


What does the LuxR gene do?

#Unit 4. Cell Communication and Cell Signaling
  1. an repressor protein that is terminate the transcription when it is in a complex with its ligand AHL
  2. an activator protein that is only able to turn on transcription when it is in a complex with its ligand S-adenosylmethionine (SAM)
  3. an activator protein that is only able to turn on transcription when it is in a complex with its ligand AHL
  4. an repressor protein that is terminate the transcription when it is in a complex with its ligand S-adenosylmethionine (SAM)
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TLS Online TPP Program

#Question id: 12799

#Unit 10. Ecological Principles

Which biome is able to support many large animals despite receiving moderate amounts of rainfall? 

TLS Online TPP Program

#Question id: 34116

#Unit 2. Cellular Organization

A. The positive charge on lysine is neutralized upon acetylation
B. Methylated lysine and arginine are neutral.
C. Lysine can be mono-, di-, or triacetylated
D. Arginine can be mono or diacetylated. 
E. Both Lysine and Arg can be acetylated

Choose true and false

TLS Online TPP Program

#Question id: 11724

#Unit 6. System Physiology – Plant

At the subcellular level, starch is stored in amyloplasts in the endosperm of cereals. Two enzymes responsible for initiating starch degradation are α- and β-amylase

a) α-Amylase hydrolyzes starch chains internally to produce oligosaccharides consisting of α(1,4)-linked glucose residues

b) β-Amylase degrades these oligosaccharides from the ends to produce maltose, a disaccharide

c) α-Amylase degrades these oligosaccharides from the ends to produce maltose, a disaccharide

d)  α-Amylase hydrolyzes starch chains internally to produce oligosaccharides consisting of  β(1,4)-linked glucose residues

e) β-Amylase also converts maltose to glucose

Which of the following combination from the above statements is correct?

TLS Online TPP Program

#Question id: 6601

#General Aptitude

A

M

B

N

R

C

S

D

E

U

F

?

TLS Online TPP Program

#Question id: 170

#Unit 1. Molecules and their Interaction Relevant to Biology

Desmosine, an uncommon amino acid is derived from