The template with polarity 3` ->5`, the replication is continuous and is known as
Okazaki fragments
lagging strand
leading strand
None of these
Regulation of Lac operon by repression is referred.
Positive regulation
Negative regulation
Both a and b
Many nucleotides are joined to one another by phosphodiester bonds to form :
Nucleocide.
Histones.
Amino acides.
Poly nucleotide.
R - Strains are non- pathogenic because
They have carbohydrate capsule
They have protein capsule
They have no carbohydrate capsule
In Eukaryotes Chromosomes are found in the
Nucleoid
Nucleus
Cytoplasm
All of the above
The Purines present in DNA are :
Adenine and Guanine.
Thymine and Adenine.
Adenine and Cytosine.
None of these.
The t RNA occurs in the __________.
Cell wall
Cyto plasm
Which of the following is an initiation codon.
UAA
AGU
GUA
AUG
Coding or expressed sequence are called
Exon
Introns
Replicon
Coding strand
A Phosphate group is linked to 5` - OH of a nucleoside through phospho ester linkage to form :
Nucleotide.
Nucleosome.
Nucleoside.
None of the above.