🧬 DNA vs RNA 🧬

Alright, time to share my biology knowledge with you :nerd_face::joy:
DNA and RNA seem similar, but they have different purposes.

Let’s start with the basics of DNA:
DNA is the abbreviation for Deoxyribonucleic Acid. It is made out of sugar (S), phosphates §, and Nitrogenous bases. The type of sugar it uses is Deoxyribose. The Nitrogenous bases are the important part because the way they are lined up makes the difference between different people (or animals, basically every creature). Those bases are Thymine (T), Cytosine ©, Adenine (A) and Guanine (G). Putting all of these parts together, one side of DNA can look like this:

S
|
P - A
|
S
|
P - C

and so on. Sugar and phosphates form a backbone for the DNA and the phosphates are tied to the bases. However, the DNA has another side as well, it is a double helix, two spirals that wind around each other. They are connected by their bases. Cytosine can only connect to Guanin and Adenin can only connect to Thymine. This would make our example of a structure look like this:

S . . . . . . .S
| . . . . . . . .|
P - A - T - P
| . . . . . . . .|
S . . . . . . .S
| . . . . . . . .|
P - C - G - P

In the end, it looks like this:

DNA is needed to store our genetic information in each of our cells. Our DNA defines, for example, whether we have blue, brown or green eyes. This information needs to be saved for long periods of time.


Now to the basics of RNA:
Basically, RNA is just the DNA cut in half. It only has one helix, so it’s just one spiral. Instead of Thymine, it has Uracil. The type of sugar it uses is Ribose. Other than that, it’s structure is similar to the structure of the DNA, for example:

S
|
P - U
|
S
|
P - C

image

In contrast to the DNA, there are different types of RNA (mRNA, tRNA, rRNA) with different purposes. In general, RNA is needed to produce the right proteins in the cells. It does not store genetic information but the information, what proteins are needed for the body.


This is all I can think of right now. If you have any more questions, feel free to ask! :smiley_cat:

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That’ll be o helpful for my bio, thank you! :sob:

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Hey, so now that we have our @Scientists, I thought you’d want to read and discuss it. Also, @Students and @HomeworkHelp could find this really help too. (wink)

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Thank you for this! There is a chapter in my chem book named Biomolecules and I absolutely can’t get the hang of it :joy:
This will be so helpful! :grinning_face_with_smiling_eyes:

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Thank youu! I’m learning this in biology right now and I really can’t be bothered to study any of it :sob:

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Cool thread, I’ll read it soon!

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Okay this makes alot of sense! Both seem incredibly necessary for the body to have of course :joy:

@Students do any of you guys cover this in school?

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