BIOMOLECULES AND ENZYMES

Detailed explanation-1: -A DNA molecule is made up of two linked strands that wind around each other to resemble a twisted ladder in a helix-like shape. Each strand has a backbone made of alternating sugar (deoxyribose) and phosphate groups. Attached to each sugar is one of four bases: adenine (A), cytosine (C), guanine (G) or thymine (T).

Detailed explanation-2: -Abstract. Double-stranded DNA and RNA, and DNA/RNA hybrids form naturally in cells between two nucleic acid strands containing complementary sequences. However, these double-stranded nucleic acid structures need to be separated for DNA replication, RNA transcription, RNA processing, and DNA repair.

Detailed explanation-3: -DNA is inherently a double-stranded molecule. There are 4 bases all with a sugar and a phosphate (called nucleotide). The bases are on the inside of the DNA and the sugar and phosphate interact with other sugars and phosphates to make up a backbone that is held together by PHOSPHODIESTER bonds.

Detailed explanation-4: -The double helix describes the appearance of double-stranded DNA, which is composed of two linear strands that run opposite to each other, or anti-parallel, and twist together. Each DNA strand within the double helix is a long, linear molecule made of smaller units called nucleotides that form a chain.