Advertisements
Advertisements
Question
The net electric charge on DNA and histones is ______.
Options
negative and positive, respectively
both negative
both positive
zero
Advertisements
Solution
The net electric charge on DNA and histones is negative and positive, respectively.
Explanation:
On DNA and histones, the net electric charge is both negative and positive. The presence of phosphate ions in the nucleotides makes the DNA molecule negatively charged. Because lysine and arginine amino acid residues are present, his tones are positively charged.
APPEARS IN
RELATED QUESTIONS
Although a prokaryotic cell has no defined nucleus, yet DNA is not scattered throughout the cell. Explain.
Find the odd one out:
AUG codon gives ________ & ________ amino acids in prokaryotes & Eukaryotes respectively.
Write a note on the packaging of DNA in prokaryotes.
Repeating units of chromatin are known as ____________.
The octamer of histone protein is made of ______.
Which one of the following histone molecule is NOT double in one nucleosome?
The chromatin is packed to form a solenoid structure of ______ diameter.
Telomere has a unique property of __________.
Histone proteins are ______.
The structure in chromatin seen as ‘beads-on string’ when viewed under electron microscope are called ______.
Which of the following is correct about mature RNA in eukaryotes?
Read the following and answer from given below:
The process of copying genetic information from the template strand of DNA into RNA is called transcription. It is mediated by RNA polymerase. Transcription takes place in the nucleus of eukaryotic cells. In transcription, only a segment of DNA and only one of the strands is copied into RNA.
Monocistronic structural genes are found in which organisms?
Plasmid has been used as vector because ______.
In the eukaryotic cell cycle, cell fusion experiments show that:
Which process occurs in the regulation of gene expression in prokaryotes but does not occur in the regulation of gene expression in eukaryotes?
______ are the amino acids of histones.
In an experiment, DNA is treated with a compound which tends to place itself amongst the stacks of nitrogenous base pairs. As a result of which, the distance between two consecutive base increases, from 0.34nm to 0.44 nm. Calculate the length of DNA double helix (which has 2 × 109 bp) in the presence of saturating amount of this compound.
Replication of DNA in eukaryotes is initiated by ______.
