what is DNA and its importance
diff between DNA and RNA
DNA is composed which form
Answers
Definition of DNA and it's importance.
DNA is vital for all living beings – even plants. It is important for inheritance, coding for proteins and the genetic instruction guide for life and its processes. DNA holds the instructions for an organism's or each cell's development and reproduction and ultimately death.
Difference between DNA and RNA.
Function
FunctionDNA replicates and stores genetic information. It is a blueprint for all genetic information contained within an organism.
RNA converts the genetic information contained within DNA to a format used to build proteins, and then moves it to ribosomal protein factories.
Structure
Structure DNA consists of two strands, arranged in a double helix. These strands are made up of subunits called nucleotides. Each nucleotide contains a phosphate, a 5-carbon sugar molecule and a nitrogenous base.
RNA only has one strand, but like DNA, is made up of nucleotides.
RNA strands are shorter than DNA strands. RNA sometimes forms a secondary double helix structure, but only intermittently.
RNA strands are shorter than DNA strands. RNA sometimes forms a secondary double helix structure, but only intermittently. Length
RNA strands are shorter than DNA strands. RNA sometimes forms a secondary double helix structure, but only intermittently. Length DNA is a much longer polymer than RNA. A chromosome, for example, is a single, long DNA molecule, which would be several centimetres in length when unravelled.
RNA molecules are variable in length, but much shorter than long DNA polymers. A large RNA molecule might only be a few thousand base pairs long.
RNA molecules are variable in length, but much shorter than long DNA polymers. A large RNA molecule might only be a few thousand base pairs long. Sugar The sugar in DNA is deoxyribose, which contains one less hydroxyl group than RNA’s ribose.
RNA contains ribose sugar molecules, without the hydroxyl modifications of deoxyribose.
RNA contains ribose sugar molecules, without the hydroxyl modifications of deoxyribose.