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TLS Online TPP Program

#Question id: 611

Which statement is false about the sequential theory of enzyme catalysis?

#SCPH05 I Biotechnology

  1. It treats the concerted theory as a limiting simple case.

  2. It allows for a distribution of high and low affinity subunits in the same protein.

  3. It assumes more than one conformation of a particular subunit can have high affinity for the ligand.

  4. It is also called the ligand-induced theory and is more general than the concerted theory.

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TLS Online TPP Program

#Question id: 20540

#SCPH28 | Zoology

Toluene, ethylbenzene and xylene must be kept to ________levels in drinking and recreational waters due to their toxicity
TLS Online TPP Program

#Question id: 431

#SCPH06 I Botany

Which is not generally a molecule used to conserve energy?
TLS Online TPP Program

#Question id: 18645

#SCPH01 Biochemistry

SDS PAGE separate molecules by size because the presence of SDS (sodium dodecyl sulphate) denatures the protein removing 2˚, 3˚ and 4˚ structures (they assume a linear chain) and the SDS coats the molecules giving them a uniform charge/mass ratio. In an experiment (SDS-PAGE) with a discontinuous buffer system following band pattern is obtained 

   
Choose the correct statement regarding this band pattern
TLS Online TPP Program

#Question id: 4315

#SCPH06 I Botany

A researcher introduces double-stranded RNA into a culture of mammalian cells and can identify its location or that of its smaller subsections experimentally, using a fluorescent probe. When she finds that the introduced strand separates into single-stranded RNAs, what other evidence of this single-stranded RNA piece's activity would she find?
TLS Online TPP Program

#Question id: 19691

#SCPH01 Biochemistry

The QT interval of an electrocardiogram (ECG) includes the