Junk DNA

Scientists from the Centre for Cellular and Molecular Biology (CCMB) have found in a study that all the non-coding part of human DNA is not junk. While more than 50% of the non-coding DNA was repetitive, Simple Sequence Repeats (SSRs) account for about 3% of the human genome.
Human has 100 billion km of total DNA, enough to reach sun and come back 300 times. But of the 3.3 billion nucleotides of human genome, less than 2% code for proteins while the remaining 98% is non-coding in nature and generally described as “junk DNA”.