SNP which is pronounced as "snips” stands for:
(1) Small nuclear protein
(2) Single nucleotide particle
(3) Single nucleotide polymorphism
(4) Small nicking points
The length of E. coli DNA and length of DNA in a human 2N cell is:
(1) 1.36 mm and 2.2 m respectively
(2) 1.36 mm and 2.2 mm respectively
(3) 1.3 ìm and 2.2 ìm respectively
(4) 1.36 cm and 2.2 cm respectively
Identify the incorrectly matched pair:
Organism | Length of DNA |
1. Bacteriophage ϕ 174 | 5386 base pairs |
2. Bacteriophage Lambda | 48502 base pairs |
3. Escherichia coli | 4.6 X 10^6 base pairs |
4. Human beings | 3.3 X 10^9 base pairs |
Which of the following would be nucleoside found only in RNA?
(1) Thymidine
(2) Cytidine
(3) Uridine
(4) Adenosine
In a strand of a nucleic acid. Two nucleotides are linked together by:
(1) 3’ – 5’ phosphodiester bond
(2) 5’ – 3’ phosphodiester bond
(3) 2’ – 5’ phosphodiester bond
(4) 3’ – 1’ phosphodiester bond
What is another name for thymine?
1. 5 – bromouracil
2. 3 – bromouracil
3. 3 – methyl uracil
4. 5 – methyl uracil
Watson and Crick based their model of DNA on X-ray diffraction data produced by:
1. Hershey and Chase
2. Marie Curie and Pierre Curie
3. Franklin and Wilkins
4. Meselson and Stahl
In prokaryotes:
(1) A typical nucleus is not seen and DNA is scattered throughout the cell
(2) A typical nucleus may sometimes be present and DNA is scattered throughout a cell
(3) A typical nucleus is not seen but DNA is not scattered throughout the cell
(4) A typical nucleus may sometimes be present but DNA is not scattered throughout the cell
Histones are rich in amino acids:
(1) Arginine and Lysine
(2) Argine and Leucine
(3) Arginine and Isoleucine
(4) Aspartate and Glutamate
A typical nucleosome unit consists of about:
1. 60 base pairs
2. 140 base pairs
3. 200 base pairs
4. 400 base pairs