RNA (Ribonucleic Acid)

RNA (Ribonucleic Acid)

Structure of RNA:

1. Single strand: Unlike DNA, which is like a twisted ladder, RNA is a single strand. It looks more like half of a ladder.

2. Backbone: Like DNA, RNA has a backbone made of sugar and phosphate molecules. But the sugar in RNA is called ribose.

3. Bases: RNA also has four bases, but they are different from DNA:

   • Adenine (A)

   • Uracil (U) (instead of Thymine, which is in DNA)

   • Cytosine (C)

   • Guanine (G)

In RNA, A pairs with U, and C pairs with G when it's reading the DNA code or interacting with other molecules.

4. Role: RNA’s main job is to take the instructions from DNA and help make proteins. There are different types of RNA, like:

   • mRNA (messenger RNA): Carries the code from DNA to the cell machinery that makes proteins.

   • tRNA (transfer RNA): Helps assemble the protein by bringing the right building blocks (amino acids).

   • rRNA (ribosomal RNA): Forms part of the ribosome, which is the cell's protein-making factory.

So, RNA is like a single-stranded helper that takes the instructions from DNA and helps build the proteins that make your body function.