Gel electyrophoresis is used for

70S ribosomes, chromatophores and circular DNA are found in 

One turn of DNA possesses

Griffith effect is

In Streptococcus pneumoniae

Bacterium in which transformation was first studied is

Genetic code determines

Arrangement of three successive bases in genetic code signifies

Operon model of gene regulation and organisation of procaryotes was proposed by

In operon model, RNA polymerase binds to

Correct sequence of code transfer during polypeptide formation is

Transformation experiments in bacteria were first performed by 

Bacteriophage with radioactivity both in DNA and protein infects a bacterium. Bacterium becomes radioactive. Radioactivity occurs in

DNA was proved to be genetic material through experiment of

From their experiments on Neurospora crassa, Beadle and Tatum proposed

Plant cell can be transformed through

Which is correctly matched ?

All the terminator codons begin with

DNA element with ability to change its position is

Find out the correct options
1. Amino acids may have more than one codon
2. All amino acids have more than one codon
3. Codons are common for higher and lower organisms
4. Codons are not found in bacteria

Find out the correct options
1. Frederick Griffith - Transformation
2. Gamow - Triplet code
3. Meselson - Isolated DNA

What does the following signify

From bacteria to men, a near universal code for phenylalanine is

Which one of the following acts as a catalyst in a bacterial cell

In Griffiths experiment, the conversion of R- type to S-type of Diplococcus pneumoniae when mixed with heat-killed S-type is called

Which of the following is true with reference to transformation in bacteria
i) Transfer of genetic material is mediated by F factor
ii) Uptake of DNA fragments from the surrounding environment and expression of that genetic information in recipient cell 
iii) Transformation experiments were the basis to propose chromosomal theory of inheritance
iv) Transformation was discovered by Griffith in Streptococcus pneumonia

A molecule that acts as a genetic material must fulfill the traits given, except

Escherichia coli in which both the strands are labelled with $^{15}N$ is transferred to $^{14}N$ medium and allowed to replicate for two generations. Find the number of hybrid DNA molecules in the second generation

Beside direct chemical analysis DNA and RNA can be detected by which of the following method?
a. Photometric procedures
b. Staining reactions
c. Enzyme digestion
Select the correct answer using the codes given.