Structure of DNA and DNA Packaging
Structure of DNA and DNA Packaging: Overview
This Topic covers sub-topics such as DNA, Structure of DNA, Nucleotides, Watson-Crick Model of DNA, Purines, Nucleosome, Chargaff's Rules, Histones, Pyrimidines, Heterochromatin, Euchromatin, Packaging of DNA Helix and, Chemical Composition of DNA
Important Questions on Structure of DNA and DNA Packaging
Explain the heterochromatin part of the chromatin.
What is the difference between constitutive and facultative heterochromatin?
Heterochromatin exhibits active transcription.
_____ is also called the silent chromatin.
NHP are associated with DNA replication.
Explain the functions of non-histone proteins.
Define Non-histone chromosomal proteins.
The structures of chloroxylenol and adenine are:
The diagram below shows the structure of a nucleosome. Write the abbreviation of part labelled as 'X' in the given diagram.
The DNA connecting the two adjacent nucleosomes is called_____ DNA.
Nucleoside is a nucleotide without _____.
Among the four nitrogenous bases of DNA, which nitrogenous base is not found in RNA?
A nucleotide consists of a sugar molecule, _____ group and a nitrogenous base.
Linker-DNA, connecting two successive nucleosomes, consists of _____ base pairs.
The nucleotides present in the RNA molecules includes the uracil and adenine nitrogen bases.
A typical nucleosome "bead" is made up of
The length of DNA helix in a typical nucleosome is
Phages infect the _____ (bacterial/virus) cells.
Nucleotides are made up of a hexose sugar, nitrogenous base and a phosphate group.
AGGTATCGCAT is a sequence from the coding strand of a gene. What will be the corresponding sequence of the transcribed mRNA?
