There was a sub in class today. The covered content was difficult. The video at the end of the presentation is very helpful. There will be a quiz on this material on 2/29/16, after we spend a day in class reviewing this material and doing LOTS of practice!
Just as it wouldn’t be wise to carry around a hard drive with millions of lines of computer code, DNA is held in the nucleus for safekeeping. So how does it communicate its information to the ribosomes, where the proteins are made? This is where our other nucleic acid, RNA, comes into play. In the computer analogy, RNA is a like a USB drive. It plugs into the hard drive, copies a small amount of the needed information, then carries it to a second location where it can be used. The original is kept safe. If the USB drive is damaged, it isn’t really a big deal provided the original is preserved. RNA copies sections of DNA and then leaves the nucleus of the cell for the ribosomes where particular proteins can be made based on the code found in the DNA.
We took notes from this presentation on RNA and then did some activities. Pay careful attention to what makes RNA, how RNA differs from DNA and the three types of RNA.
It is hard to believe that the end of the semester is already here! I have attached here a presentation that overviews what you should be looking at as you study for the final. The final is written primarily from your notes–proficiency level only–and is comprehensive over the entire semester.
In addition, we played a review game today. If you want to test yourself again AFTER you study, then here it is!