In lac operon, the regulator gene codes for
Aporepressor
Corepressor
Inactive repressor
Active repressor
Whereas the number of chromosomes is reduced to half in first reduction division of meiosis, then what is the need for second mitotic division
In a hair pin model of $RNA$ which nitrogen base is present at the short end
Okazaki segments are formed during
In the technique of $DNA$ fingerprinting digestion of $DNA$ is followed by