Скачайте изображение (превью) выбрав качество

320x180 480x360 640x480 1280x720

What is RNA | Genetics | Biology | FuseSchool

DNA is a type of nucleic acid. In this video we are going to have a quick look at another type; RNA.

We have both DNA and RNA in our bodies. We need them both! DNA is the blueprint; it contains all of the instructions for the cell to grow, function and replicate. The RNA carries out these instructions; it copies and transfers the genetic code from the DNA to ensure the relevant proteins are made. So just think of it as “DNA makes RNA make proteins”.

Whereas DNA stands for deoxyribonucleic acid, RNA stands for ribonucleic acid. Whilst DNA is double stranded, RNA is single stranded.

Like DNA, RNA is made up of a long chain of nucleotides. Each nucleotide consists of a ribose sugar, phosphate group and a nucleotide base. RNA has a sugar called ribose, whereas DNA has a sugar called deoxyribose. RNA has a base uracil, or U, whereas DNA has the base thymine or T. So in RNA C and G still pair, but now A and U pair.

We need to know about RNA because we will see it when learning about protein synthesis. We will see two special types of RNA: messenger RNA, which is known as mRNA, and transfer RNA, which is known as tRNA. We will see the mRNA being synthesised inside the nucleus, copied from the DNA code. The tRNA is found in the cytoplasm.

For many years, we just thought RNA was a DNA photocopier as mRNA, the protein builder, as tRNA, and found in ribosomes as rRNA. However, RNA can also act as enzymes to speed up chemical reactions, and in many viruses, they have RNA instead of DNA. The RNA carries the genetic codes in those viruses.



SUPPORT US ON PATREON


SUBSCRIBE to the FuseSchool YouTube channel for many more educational videos. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT.

VISIT us at www.fuseschool.org, where all of our videos are carefully organised into topics and specific orders, and to see what else we have on offer. Comment, like and share with other learners. You can both ask and answer questions, and teachers will get back to you.

These videos can be used in a flipped classroom model or as a revision aid.

Find all of our Chemistry videos here:

Find all of our Biology videos here:

Find all of our Physics videos here:

Find all of our Maths videos here:

Instagram:
Facebook:
Twitter:

Access a deeper Learning Experience in the FuseSchool platform and app: www.fuseschool.org
Follow us:
Befriend us:

This is an Open Educational Resource. If you would like to use the video, please contact us: info@fuseschool.org

Чтобы скачать видео "What is RNA | Genetics | Biology | FuseSchool" передвинте ползунок вправо