Dietary fibre is diffcult to digest ,yet it is advisable to Include in our diet. Why?

Fiber is made out of cellulose. Our body doesn't synthesize an enzyme that digests cellulose(cellulase) that's why we can't metabolize it. fiber is good because it reaches the colon undigested and helps the intestinal fauna and can even prevent colon cancer

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides