UV radiation

Our video describes the journey and function of the replication macromolecule RNA, how its function can be altered by mutation, and how this could be dangerous to the human body. RNA's journey begins in the nucleus of a cell, where it is "transcribed," or where its nitrogenous bases are arranged, by DNA. From the nucleus, the RNA travels to the ribosome, where every 3 N-Bases, together forming a single "Codon", are translated into ONE amino acid. These amino acids are later formed into proteins, which mediate ALL cellular function in the body. So, in the end, RNA is directly responsible for the production and variation of proteins in the human body. Mutation, or the deletion/substitution/rearrangement of a single N-Base in the DNA strand, may arise from a number of causes, including a significant exposure to cigarette smoke and UV radiation. For many Americans today, both men and women who have tan skin are regarded as especially attractive, and many people are using tanning beds, where they receive a high amount of UV exposure in a short period of time. These tanning beds might be safe in moderation, but too much exposure to the UV rays could result in a mutation of DNA. This is very dangerous, because the DNA dictates the structure of the RNA, which dictates the structure of all proteins in the body. A disturbance in the process of protein synthesis can cause cancer.

Category:

Education

Tags:

• UV
• radiation

[danielitad93]

wow! that is really good and very accurate.... i just learnead about this in my ap bio class, good animations

[SamuelHammer]

Great energy and animations but some significant mistakes in the "science" (see below).

Replication is a separate process from transcription (which is where RNA is made). The RNA is not translated into nitrogenous bases. It already has nitrogenous bases on it, which comprise the codons. These codons (series of 3 nitrogenous bases) are translated into amino acids. If thymine mutates into guanine, as you've shown, can it still be paired with adenine?

But you got the bottom line message right!