futureless

Hi, does anyone know if farnesylation could affect the mobility of a protein in a western blot? In particular, could farnesylated and unfarnesylated forn a doublet for a certain protein? or does farnesylation not show up, and the two forms would just migrate the same distance? help is very much appreciated, thanks in advance

Hey, just wondered if you guys could clear something up for me:D When using the beer lambert law, should you use the Absorbance value at Lambda max, ie the highest absorbance? (because presumably using different values would lead to different molar absorption coefficients, which isn't good)

Hey, I was learning about the enthalpy of hydration today and it went *whoosh* right over my head. Have a look at this paragraph from my textbook Erm okay, I have several questions Why is energy released when a bond is formed? How does the attraction of water molecules to ions release energy? Is hydration where water molecules break down a lattice by attraction and then water molecules end up surrounding a single ion OR is this solvation OR a special water case of solvation? Whats the difference between the enthalpy of solvation, the enthalpy of solution and the enthalpy of hydration? The paragraph says "Part of the energy is released...", so there's still some of the energy still needed, where does this come from? As you can prabably tell, I'm totally confused and I'd appreciate any help you can give, thanks

Hi, I'm not sure if I posted this in the right place, so sorry if I'm completely wrong. I had Biology today and the term potential difference cropped up when we were talking about resting potential and I was thinking "What on earth...":eek: . Isn't p.d a fancy word for voltage which is the drivinhg force of electrons round a circuit? What has it got to do with polarised membranes?

Hi, I'm applying for a Biochemistry course at Uni, and was looking to read some good books on Biochemistry that I could mention on my personal statement. I'm having a hard time finding anything good at the library and I have taken books home, only to find they are too difficult/boringly wriiten, more than once. Has anyone got any suggestions? I am curently reading The Thread of Life from Cambridge University Press, and that's quite interesting.

I'm thinking of doing Biochemistry at Uni too. Prion and ecoli, were you at all hesitant before deciding on Biochemistry? I mean I like the course. I think it sounds really interesting, but I dunno... the idea of beng stuck in a lab kinda puts me off a bit.

Unless I'm mistaken, that article talks of a future where we grow new plants and animals, but we're currently heading towards growing our own 'special humans'. I think the idea that parents may be able to choose what characteristics their child has is the scariest. It goes against my "loving me for my virtues and faults " principle. I agree though, the worst thing that Biotechnology could ever do is stop death. That would mess up the whole planet. More people, more polution, more demands, less space, less progress...never mind the moral arguments!

I believe there are two strands, beacuse this structure gives DNA stability and complementary base pairing means each strand is a mirror image of the other. There are two strands, but only one is used in protein synthesis- the sense strand, which has promoter codons for transcription. Also if you think about it, this way every time DNA replication occurs the new DNA strand will be the same as the original DNA!

Well, I suppose I should start by introducing myself. I'm Aggy and I'm due to start A2 Level Biology, Chemistry, and either/or both, Physics and Psychology. I'm having a lot of trouble deciding on a degree for myself. I originally did not want to take a Biology AS, I wanted to take Maths, but it clashed with my timetable so I took Bio. I had a good experience and I got an A in the first module exam. AS Chemy was interesting, but difficult. AS Physics, I loved, but I'm not sure if its because of the content or because of...erm...other things (or shall I say people )- it sounds stupid I know. AS Psychology, I just had to take. I always thought I would love it, and although its intersting, I wouldn't say its lived up to my expectations. Originally I wanted to take Physics, but EVERYONE said I needed Maths, and I didn't have it. I felt kinda gutted. So I though "Psychology is perfect", but I looked at the courses and was put off by all the written work. Then I thought "Hey I like Bio, I'll go for that!" As I researched I came across Biochemistry and thought it was right for me, I should've known I would start to doubt the choice. Looking through the prospectus of a uni I came across 'Physics with a preliminary year' which taught maths to A- level standard so you could enter physics and fell in love again. But, alas, the class sizes are small, and I really wanted to start off uni with my degree- kinda like starting with a BANG. As for careers, I had a few in mind, all surrounding a central theme. A flexible, ever changing job, which is challenging and allows to make a difference (yes I know its cheesy). The careers I had in mind were teaching, forensic science, and science research. So, god help you, I'm asking a HUGE favour of you. Please help me by giving me good IMPARTIAL advice. Please don't try top sell careers or courses to me, I want you to be unbiased. I'm really confuzzled....At the moment I hate school, and can't decide if I like something or not...Thanks guys!

OMG! Its turned into a HP discussion! Yipee! In case you hadn't noticed I'm a huge fan and I think as there is so much evidence pointing towards it, Dumbledore wanted Snape to do the "thing" and snape didn't want to. That's what they were arguing about (see excerpt above). Anyways I don't think we're allowed to be so off topic, so call it shameless self promotion if you will, but you can carry on these discussion on my site forums here.

Hi, I'm studying Chemistry AS level and I was wondering if anyone could explain redox reactions and the whole method of getting half equations from whole equations and vice versa. I'd be really greatful if you could help, thanks people...

In no order..... Harry Potter and the Goblet of Fire The Mummy Returns Armageddon Gladiator Lord of the Rings Triology

merci, thats all I was really looking for, any other common dangerous props of acids/alkalis

Hmm.... I'm thinking of doing a a degree in an area of science, but it seems to me like there will be a lot of boring work included in the course