Which of the following feature is correct for bacteria?
Presence of intervening sequences in $DNA$
$DNA$ does not show coiling
Linear ss-$DNA$ representing single chromosome
$DNA$ can be chromosomal as well as extrachromosomal
A normal spontaneous rate for a single gene is one mutation in every……replication
Which of the following group of codons is called stop codons ?
Repetitive sequences are stretches of $DNA$ with repeated bases many times in a genome, but
$(a)$ These sequences are of no transcriptional function
$(b)$ These are associated with euchromatin region
$(c)$ These helps to identify a person on the basis of its $DNA$ specificity
The grouping of human chromosomes is based on
Centromere is required for