Advertisements
Advertisements
Question
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.
Advertisements
Solution
2 × 109 × 0.44 × 10–9/bp
APPEARS IN
RELATED QUESTIONS
The number of adenine molecules in a given DNA segment is 25 and the number of cytosine molecules is 45, the total number of nucleotides in the segment is _______________.
Although a prokaryotic cell has no defined nucleus, yet DNA is not scattered throughout the cell. Explain.
In an octamer of the nucleosome, core DNA consists of ______ base pairs.
Attempt any TWO of the following:
With the help of a suitable example illustrate ‘Palindrome’.
A typical nucleosome "bead" is made up of ______.
The length of DNA can be calculated by ______.
The net electric charge on DNA and histones is ______.
Nucleosome core is made of ______.
Barr body in mammals represents ______.
Read the following and answer from given below:
In prokaryotes, DNA is circular and present in the cytoplasm but in eukaryotes, DNA is linear and mainly confined to the nucleus. DNA or deoxyribonucleic acid is a long polymer of nucleotides. In 1953, the first correct double-helical structure of DNA was worked out by Watson and Crick. Based on the X-ray diffraction data produced by Maurice Wilkins and Rosalind Franklin. It is composed of three components, i.e., A phosphate group, a deoxyribose sugar, and a nitrogenous base. Different forms of DNA are B-DNA, Z-DNA, A-DNA, C-DNA, and D-DNA.
Name the linkage present between the nitrogen base and pentose sugar in DNA.
Flagella are present both in prokaryotic and eukaryotic cells, however, they differ in:
Histones are rich in ______.
Which process occurs in the regulation of gene expression in prokaryotes but does not occur in the regulation of gene expression in eukaryotes?
Watson and Crick proposed the 'Double Helix' structure of DNA based on data produced by ______
What is the function of histones in DNA packaging?
Total ATP production during EMP pathway is ______.
In a mature, functional mRNA of eukaryotes______.
Nucleosomes are the repeating units of chromatin the part between adjacent nucleosomes is called ______ .
Histones are enriched with ______.
