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The DNA ---> mRNA ----> protein is the central dogma of molecular biology and you use this simple "flowchart" as your biological model. Make sure you draw your model out, as above (DNA---> etc) Then you discuss the advantages and disadvantages, much like what Twiggyy had done. Generally...

NO!! Just be careful with the use of terminology! A yeast is a unicelluar microorganism (saccharomyces) that is a type of fungi. It is NOT an enzyme! If you say a yeast is an enzyme you will lose marks in the exam! Yeasts PRODUCE enzymes capable of fermenting sugars, the yeast cells...

I didn't know there are SO MANY bio students here! Where are you ALL in the Bio forum??! :D The number of posts here is like 1000 times more than the total posts in the bio forum combined! :D And GOOD LUCK everyone for the Bio exam!

Hmmm, but a lot of body temperatures of marine animals are already above its environment - the sea. e.g whales and dolphines, seals etc. Even human's body temp. of 37 degress Celsius is above the ambient temperature of around 25. I can't see the point of this question.

How do they calculate courses that are only graded base on Pass or Fail? Will the UOC be counted in the WAM? Or completely excluded?

It's called ribozyme. But you don't need to know that :D Good luck for this week in the Biology Exam, everyone! (or whenever it is :confused: )

Yes they do, but that's only because of adaptation. But if the examiners ask you to compare the structure and size of the arteries and veins, you assume that both vessles are under physiological conditions. Vasodilation - increase in blood vessel diametre in repsonse to heat (a physiological...

Independent assortment is mendel's second law, which describe that the segregation of alleles at one gene occurs independently of the segregation of alleles at another gene. Random segregation GENERALLY describes that during meiosis, the segregation of one homologous chromosome is...

Remember the 50% internal mark will change considerably dependent on your own HSC exam mark. So really, the HSC exam is worth 70%.

Yes I think the producers pick the orders, not randomly drawn. The first and earlier performers are usually disdvantaged as many people miss their performance and only tune in later in the show, hence not voting for them. This is just an observation: Casey sang last in the finale, she won...

I can't remember what the syllabus ask for this dot point. I think it was on both the second and third column and ask students to "Discuss" the use of a transgenic species. Soemtimes it's ok to know a little bit more to get the whole picture. And Bt is Bacillus thuringiensis, not Bacterius...

Great! Hope you do well.

Hybridisation of a species has nothing to do with trasgenic species, except you are manipulating the genes. You are right in that hybridisation of a species includes a mule, as a result of a cross between a horse and a donkey. Another example is lion and tiger to produce a liger.

There will always be mistakes in textbooks, secondary or tertiary. You just need to use a number of different textbooks, which you have access to in the library, to look for common themes in particular parts of the course that you are unsure of.

Ok, to produce a recombinant DNA (a DNA with the desired gene added), first you cut the gene that you want out, e.g, the human insulin gene. Then you use the same restriction enzyme to cut the vector DNA, e.g. a plasmid. Because both the insulin gene and the vector DNA are cut by the same...

For those people who said "what's wrong with you Australia, Emily in the Bottom 2", did you actually voted for her?! :(

Always relate to the question in every part of your essay.

Yes but that was 2 years ago and I didn't really like that song. I don't think she will come on again this time. :(

I agree with Serphim. It won't make a difference at all.

Genetics and biochemistry are different, but related disciplines. Genetics deals with mutations and variations, both at the prokaryotic and eukaryotic level. Biochemistry mainly deals with metabolism in humans or other organisms, and examine how glucose, amino acids and fatty acids get broken...