Monday, September 10, 2007
there are times when i find myself missing biology... i find it so fascinating... learning about the complex and intricate way in which things work. Like for example, the human body... how... everything just... works.
haha like when you consider the genetic code, all thats required for lets say a condition like sickle cell anaemia is a chance mutation in the codon of a single nucleotide. (base -> codon -> nucleotide-> DNA -> chromosome (a single chromosome may have 220 million base pairs.)
instead of the base adenine--> thymine. the codon therefore becomes GTG instead of GAG... this is then in turn transcribed to GUG, and during translation, instead of the amino acid glutamic acid being attached to the polypeptide, valine is attached. because valine is slightly less polar than glutamic acid, the defective haemoglobin is less soluble than normal, and causes sticky fibres to form. the red blood cells become sickle shaped and clump together. as a result, it is unable to transport oxygen as effectively. this leads up to a number of other symptoms that disrupt the function of the body... such as shortness of breath, fatigue, organ damage. such a miniscule detail, and yet...
makes you realise how great God is... how creative and awesome He is.... to a point where i can't help but shake my head in wonder. Maker of heaven and earth.
You control the tiny things... things that we never even would think of worrying about... puts things into perspective.
wow.
Labels: praise, reminiscing, science
Updated@9:10 PM
Hey Amy!! U actually blog! Haha... And my gosh... U know Genetics soooo well! I've just learnt this like few weeks back and I can't remember a single thing!!!!! Ur insane! Hahahaha.. Kiddin.. ;p Anyway, take care.. C ya soon! *Hugs*
hahah yep =D just started... and really don't know how long it'll last for... hahaha... do u blog?
hehe i miss bio sooo much... hahaha i remember useless bits and pieces... hehehe
*hugs* hopefully i'll cya this week =D
so... whatcha thinking? =)