This is a video made by the University of West Indies students illustrating the notion of diabetes. Please like and share.
This is a video made by the University of West Indies students illustrating the notion of diabetes. Please like and share.
First and for most, I have to say, ” I Survived Biochemistry.” I have approached the end of my BIOL 1362 blog. To say this was was best course so far in the University of the West Indies is an understatement. I have grown to appreciate and understand the science of biochemistry. although it was a tough road, the journey was well spent and exciting. Though the “biggest” obstacle is approaching i.e. Finally, I am confident that I will deliver a passing grade and more. Mr Mathew, hats off to you. At first I had the impression of being overwhelmed will all his assignments but I now see the strategy behind it and I must say it works fantastically. I have earned many skill with all his assignments such as researching, documenting, paraphrasing and summarizing as well as group work just to name a few. I look forward in entering Mr. Mathews second year class though it seems that it is going to be even more challenging. So Mr. Mathew I say bring it on.
Thank you all for taking the time to read my posts and giving exclusive feedback.
1) A nucleoside (with an s) consists of a nitrogenous base covalently attached to a (ribose or deoxyribose) sugar but without the phosphate group.
2) A nucleotide (with a t) consists of a nitrogenous base, a sugar, and a phosphate group. So, a nucleotide is a “nucleoside mono-phosphate.”
3) A nucleic acid contains a chain of nucleotides covalently linked together to form a sugar-phosphate backbone with protruding nitrogenous bases. In RNA (ribonucleic acid), the sugar groups are ribose, whereas in DNA (deoxyribonucleic acid), deoxyribose sugars are present instead of ribose.
reference
“Nucleic Acid VS Nucleotide,” Newton; accessed on april13,2013. http://www.newton.dep.anl.gov/askasci/mole00/mole00296.htm.
Gene splicing is just what it sounds like: cutting the DNA of a gene to add base pairs. Contrary to the immediate image, however, no sharp instruments are involved; rather, everything is done chemically.
Chemicals called restriction enzymes act as the scissors to cut the DNA. Thousands of varieties of restriction enzymes exist, each recognizing only a single nucleotide sequence. Once it finds that sequence in a strand of DNA, it attacks it and splits the base pairs apart, leaving single helix strands at the end of two double helixes. Scientists are then free to add any genetic sequences they wish into the broken chain and, afterwards, the chain is repaired (as a longer chain with the added DNA) with another enzyme called ligase. Hence, any form of genetic material can be spliced together; bacteria and chicken DNA can, and have been, combined. More often, though, splicing is used for important efforts such as the production of insulin and growth hormone to cure human maladies.With modern splicing techniques, enough insulin can be produced for all diabetics. The insulin-producing genes from human DNA are spliced into plasmid DNA; the plasmids are then allowed to infect bacteria, and, as the bacteria multiply, large amounts of harvestable insulin are produced. Splicing has other practical medicinal uses, too. In July of 1996, a 68-year-old woman became the first patient to be treated for arthritis (a disease which affects an estimated 2.1 million Americans) via gene therapy. At the University of Pittsburgh, therapeutic DNA that blocks the production of a specific protein (IL-1) that causes arthritis pain was injected into two of her knuckles.
reference;
“The Gene School,” Think Quest; accessed on April 13, 2013.http://library.thinkquest.org/19037/therapy2.html
http://www.johnkyrk.com/DNAanatomy.html
This link carries you to most of our biochemistry topics in an animated collaborative manner.
James D. Watson and Francis Crick, the discovers of DNA structure
Realization of exams nearing and U don’t…….t
Lipids
Relatively large biological molecule that mostly does not dissolve in water.Lipids include fats, oils, cholesterol, a number of steroid hormones, the major constituents of cell membranes, etc.Lipids are predominantly hydrophobic substances, though can have hydrophilic portions as well. An example of the latter are lipids associated with membranes, that is, lipid bilayers, include phospholipids and the molecule, cholesterol.Unlike proteins, carbohydrates, and nucleic acids, lipids are less homogenous in terms of their structures. In particular, lipids do not have a consistent subunit from which they are polymerized but instead are categorized together as a group based upon their relative inability to dissolve in aqueous solutions. That is, they are oil-like in the generic sense of that term. The video placed a whole new spin on the age of rap and showed that is just not for young persons.Furthermore, while being enjoyable it also teaches one about lipids in a fun interactive session.
Reference
“Michael Eskin Lipids Rap,” Youtube Video, 2:52,posted by”Lipids Get a Real Bad Rap: It’s Just Not Fair,” May 17,2012, http://www.youtube.com/watch?v=6lrG65DdBl8