TLS Online TPP Program

#Question id: 2658


This condition in lac operon facilitates the condition of lac genes being transcribed at high levels

#Unit 2. Cellular Organization
  1. low glucose, high lactose

  2. low glucose, low lactose

  3. high glucose, high lactose

  4. high glucose, low lactose

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TLS Online TPP Program

#Question id: 19455

#Unit 13. Methods in Biology

Resolution is improved by using 
1. Shorter wavelengths of light 
2. Gathering less light
3. Gathering more light
4. Longer wavelengths of light 
Choose the option with all incorrect statements?

TLS Online TPP Program

#Question id: 15710

#Unit 12. Applied Biology

A phenolic compound, is sometimes added to inhibit the enzyme IAA oxidase responsible for the breakdown of IAA.

TLS Online TPP Program

#Question id: 13228

#Unit 6. System Physiology – Plant

Classification of plant mineral nutrients according to biochemical function

          

                  Mineral nutrient

 

                       Functions

 

      A.)  Silicon(Si)

 

     1.)    Constituent of alcohol dehydrogenase, glutamic dehydrogenase, carbonic anhydrase, etc

     B.)  Manganese(Mn)

     2.)    Component of sugar phosphates, nucleic acids, nucleotides, coenzymes, phospholipids, phytic acid, etc. Has a key role in reactions that involve ATP

      C.)  Zinc(Zn)

     3.)    Contributes to cell wall mechanical properties, including rigidity and elasticity.

 

      D.)  Phosphorous(P)

     4.)    Component of ascorbic acid oxidase, tyrosinase, monoamine oxidase, uricase, cytochrome oxidase, phenolase, laccase, and plastocyanin.

      E.)   Copper(Cu)

     5.)    Required for activity of some dehydrogenases, decarboxylases, kinases, oxidases, and peroxidases. Involved with other cation-activated enzymes and photosynthetic O2 evolution


Which of the following combination is correct?

TLS Online TPP Program

#Question id: 610

#Unit 1. Molecules and their Interaction Relevant to Biology

Protein A has four identical subunits, each of which binds one molecule of ligand Y. The binding of one molecule of Y to one of the subunits induces a conformational change in neighboring subunits that enhances the binding of additional units of Y. This is an example of________.

TLS Online TPP Program

#Question id: 33288

#Unit 2. Cellular Organization

ATM, ATR, or DNA-PK phosphorylates the variant histone within nucleosomes located close to the break, known as: