Question

What is DNA and why is it called a double helix model?

Answer 1

DNA(Deoxyribonucleic acid) is the One of two types of molecules that encode genetic information. (The other is RNA. In humans DNA is the genetic material; RNA is transcribed from it.

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

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Answer 2

•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.