What is the function of histones in $DNA$ packaging ?
What is the function of histones in $DNA$ packaging ?
Histone are the basic protein that are rich in arginine and lysine. Histones form octamer on which $DNA$ is wrapped and form nucleosome that means it helps in packaging of $DNA$ in eukaryotes.
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Adjacent nucleotides in a polynucleotide chain are joined by
Adjacent nucleotides in a polynucleotide chain are joined by
Assertion : In a $DNA$ molecule, $A-T$ rich parts melt before $G-C$ rich parts.
Reason : In between $A$ and $T$ there are three $H-$ bond, whereas in between $G$ and $C$ there are two $H-$ bonds.
Assertion : In a $DNA$ molecule, $A-T$ rich parts melt before $G-C$ rich parts.
Reason : In between $A$ and $T$ there are three $H-$ bond, whereas in between $G$ and $C$ there are two $H-$ bonds.
- [AIIMS 2010]
The reason for double helical structure of $DNA$ is operation of
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One turn of the helix in a Bform $DNA$ is approximately
- [AIPMT 2006]
Retroviruses do not follow central Dogma. Comment
Retroviruses do not follow central Dogma. Comment