Bio and chemistry

Easy and short Difference between RNA and DNA is Here   RNA (Ribonucleic Acid) • RNA is a single stranded structure. It is Present mainly in cytoplasm but some in the nucleus. RNA Contains purines (Adenine and Guanine) And Pyrimidines (Cytosine and Uracil). It Contains Ribose(Sugar) and phosphoric acid. DNA (Deoxyribonucleic Acid) DNA is a double stranded helical structure. It is Present mainly in the nucleus but some in the cytoplasm. it is Contains purines (Adenine and Guanine). And pyrimidines (Cytosine and Thymine). It Contains DeoxyRibose (Sugar) and phosphoric acid.

 DNA(Deoxyribonucleic Acid) is a double stranded (double helix) polynucleotide. DNA consists of nitrogenous bases both, purines (adenine and guanine) and pyrimidines (cytosine and thyminc), sugar (deoxyribose) and phosphoric acid. • Uracil (pyrimidine) is not present in DNA. • In DNA the two strands are joined together through out the whole length of the molecule. DNA strands are complementary to cach other but run in opposite directions.The joining between the two strands Always Occurs between purines and pyrimidines and not between purines themselves or pyrimidines themselves. There is a rule, known as "the pairing rule" according to which adenine always joins thymine through three hydrogen bonds (A=T)) and guanine always join cytosine through three hydrogen bonds(G=C). A purine and a pyrimidine, which joins together to form DNA, is known as complementary pair of bases. Therefore adenine (A) and thymine (T) form one complementary pair and guanine (G) and cytosine (C) form t...