TLS Online TPP Program

#Question id: 264


Supercoiling of pure circular DNA is a result of ________.

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. underwinding or overwinding of the helix

  2. entanglements because of the long length of the strands

  3. the lack of associated histones

  4. the activity of exonucleases

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TLS Online TPP Program

#Question id: 5159

#General Aptitude

the last digit of the number 3^2016 is

TLS Online TPP Program

#Question id: 14706

#Unit 5. Developmental Biology

Match the types of cell movement during gastrulation


TLS Online TPP Program

#Question id: 11819

#Unit 6. System Physiology – Plant

Ethylene is a gaseous hormones which  shows typical  triple response. Following are certain statements regarding the triple response:

a) reduced stem elongation

b) increased lateral growth (swelling)

c) promote root elongation

d) exaggeration of apical hook

Which one of the following combinations is correct?

TLS Online TPP Program

#Question id: 23037

#Unit 12. Applied Biology

The high persistence of halogenated xenobiotic can be overcome by whome? 

TLS Online TPP Program

#Question id: 10371

#Unit 6. System Physiology – Plant

There are three essential nod gene for every bacterial species that is−NodA, NodB and NodC, that are required for synthesizing this basic structure such as;

a) NodA is an N-acyltransferase that catalyzes the addition of a fatty acyl chain

b) NodB is a chitin-oligosaccharide synthase that links the acetyl group of the terminal nonreducing sugar

c) NodC is a chitin-oligosaccharide synthase that links N-acetyl-D-glucosamine monomers

d) NodB is a chitin-oligosaccharide deacetylase that removes the acetyl group from the terminal nonreducing sugar

e) NodC is a chitin-oligosaccharide deacetylase that removes links N-acetyl-D-glucosamine monomers

Which of the following statements about NOD Factor is incorrect?