Repressor of lac-operon
Is a tetrameric protein
Having a molecular weight of $16,000$
Has only one side
Is made by operator gene
Catalytic property of $RNA$ was discovered by
Break through of the year $2002$
Assertion: Polytene chromosomes have a high amount of $DNA$.
Reason: Polytene chromosomes are formed by repeated replication.
An unfertilized human egg contains
Which plant was used by Taylor to prove semiconservative replication at chromosomal level?