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TLS Online TPP Program

#Question id: 2737

The linking number (Lk) of a closed-circular, double-stranded DNA molecule is changed by:

#Zoology

  1. breaking a strand, unwinding or rewinding the DNA, then rejoining it.

  2. breaking all hydrogen bonds in the DNA.

  3. supercoiling without the breaking of any phosphodiester bonds.

  4. underwinding without the breaking of any phosphodiester bonds.

More Questions
TLS Online TPP Program

#Question id: 39764

#Botany

Cell wall of bacteria is mainly composed of
TLS Online TPP Program

#Question id: 39769

#Botany

Gram-positive bacteria retain crystal violet due to
TLS Online TPP Program

#Question id: 39772

#Botany

Endospores are commonly found in
TLS Online TPP Program

#Question id: 39778

#Botany

 Plasmids are
TLS Online TPP Program

#Question id: 39779

#Botany

Mycoplasma differs from bacteria by absence of
TLS Online TPP Program

#Question id: 39780

#Botany

 Bacteriophages are