Wednesday, April 16, 2008

Brett's summary

From smallest to largest units we have nucleotides (A, T, C, & G), base pairs (2 nucleotides; AT or CG), genes (a collection of base pairs that code for something, typically with 1,000 base pairs), chromosomes (with billions of genes), cell nucleus (with 23 pairs of chromosomes), cells, and humans (with trillions of cells). The first four are all DNA at different levels and combinations.

2 comments:

hyerim said...

Brett!I'm hyerim.
As you know, I skipped today's last listening test..Y.Y
So sorry,do you think I might be able to take the test tomorrow?..?
I don't know your e-mail.or phonenumber..If you see this my comment, please reply me through my e-mail(hyerimdisco@naver.com)
or my phone number is 647-886-3256.
So sorry, again.

hyerim said...

Brett!I'm hyerim.
As you know, I skipped today's last listening test..Y.Y
So sorry,do you think I might be able to take the test tomorrow?..?
I don't know your e-mail.or phonenumber..If you see this my comment, please reply me through my e-mail(hyerimdisco@naver.com)
or my phone number is 647-886-3256.
So sorry, again.