A gene is said to be dominant, if
It is never expressed in any condition
It is expressed only in heterozygous condition
It expresses its effect only in homozygous stage
It is expressed both in homozygous and heterozygous conditions
Two sister chromatids are attatched with
Which of the following group of codons is called stop codons ?
During replication of a bacterial chromosome $DNA$ synthesis starts from a replication origin site and