Restriction enzymes capable of making internal cuts in a DNA molecule is called
restriction exonuclease
restriction endonuclease
both a and b
S1 nuclease
The correct coding pattern of the four nitrogeneous bases of DNA, is
GA-CT
TG-AC
AT-CG
AC-GT
When two genetic loci produce identical phenotypes in cis and trans position, they are considered to be
Pseudoalleles
Different genes
Multiple alleles
Parts of same gene
The mode of DNA replication is semi-conservative. It was first demonstrated by
Tayler
Khorana
Watson and Crick
Meselson and Stahl
The known sequences of DNA, used to find complimentary DNA strands, are
Vector
Plasmid
DNA probe
Recombinant DNA
Anticodon is an unpaired triplet of bases in an exposed position of
m-RNA
r-RNA
t-RNA
s-RNA
In protein synthesis, the polymerization of amino acids involves three steps. Which of the following is not involved in protein synthesis ?
Initiation
Elongation
Termination
Transcription
Transcription is a process in which
RNA-synthesis
Protein synthesis
m-RNA is formed from DNA
Assembly of ribosomes or golgi bodies
Which of the following codons codes for the same information as UGC ?
UGU
UGA
UAG
UGG
Somaclonal variation can be obtained by
Hybridization
Tissue culture
Application of colchicine
Irradiation with gamma rays