what is intron,junck dna,sticky end ligation,gene mapping,contig?

Answer 1

Intron is a A stretch of DNA in a gene that does not code for proteins.

Junk DNA:
DNA that does not code for proteins or their regulation but constitutes approximately 95 percent of the human genome. It is postulated to be involved in the evolution of new genes and possibly in gene repair.

Junk DNA and Introns are different. Dont confuse the two. Junk DNA are not part of a Gene. But intron is part of a Gene.


I suggest u go to link given below for any further clarifications.

Answer 2

Intron is non coding part of DNA Which dsnt code 4 any protein and is presrent in between the Exons.They r trancribed in primary transcript of mRNA but they r removed by the process of splicing in the biologiclly active n processed mRNA
JUnk DNA is total nonfunctional DNA