Table of Contents
Why would early life use RNA in their genome rather than DNA?
It can drive chemical reactions, like proteins, and carries genetic information, like DNA. And because RNA can do both these jobs, most scientists think life as we know it began in an RNA world, without DNA and proteins.
What is the advantage of DNA to RNA?
Due to its deoxyribose sugar, which contains one less oxygen-containing hydroxyl group, DNA is a more stable molecule than RNA, which is useful for a molecule which has the task of keeping genetic information safe. RNA, containing a ribose sugar, is more reactive than DNA and is not stable in alkaline conditions.
What are the main differences between DNA and RNA?
There are two differences that distinguish DNA from RNA: (a) RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose (a type of ribose that lacks one oxygen atom), and (b) RNA has the nucleobase uracil while DNA contains thymine.
Why is dnadna better than RNA?
DNA is better than RNA because DNA is more stable, permanent, hereditary chemical units, better genetic information storehouse, and is less reactive as compared to RNA. DNA is both more resilient and more easily repaired than RNA. DNA stands for Deoxyribonucleic acid whereas, RNA stands for Ribonucleic acid. Both are polymers of nucleotides.
Why was DNA chosen as the genetic material instead of RNA?
The reason DNA had it’s reverse complement around and RNA doesn’t is that DNA is the genetic material, and therefore needs to have high fidelity storage, and RNA isn’t. Originally Answered: Why was DNA chosen to be the genetic material instead of RNA?
What is the difference between DNA and RNA polymer?
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.
How does RNA help us to study cell biology?
By studying the RNA that is transcribed from these genes, we can find out which genes are active in a particular cell type, bringing us closer to understanding how a cell can perform its specialized job.