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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:

#Botany

  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: 2791

#Zoology

In mammals, X-chromosome inactivation
TLS Online TPP Program

#Question id: 2792

#Zoology

The karyotype for any particular species is characterized by
TLS Online TPP Program

#Question id: 2793

#Zoology

Chromosome painting involves
TLS Online TPP Program

#Question id: 2794

#Zoology

All the following statements about heterochromatin except:
TLS Online TPP Program

#Question id: 2795

#Zoology

Telomeres
TLS Online TPP Program

#Question id: 2799

#Zoology

There are five major types of histones in eukaryotic cells. One of these is not part of the structure of nucleosomes and is thought to participate in forming the 30-nm condensed chromatin fiber. Which histone is this?