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
Sometimes cattle or even human beings give birth to their young ones that are having extremely different sets of organs like limbs/position of eye(s) etc. Comment.
One gene one enzyme concept means
If in a test tube, $mRNA$ of E. coli cells and $tRNAs$ from the body of rats are taken and sufficient number of amino acids are put, then the polypeptide synthesized will be of the nature of
An inactive repressor produced by regulator gene that does not block the operator site in the tryptophan Operon is called