biology topic 1&2

Nucleic acid:

RNA- contains sugar ribosome.

- contains uracil instead of thymine.

- A gene can be exposed by splitting the hydrogen bonds in the region, RNA neuclotides copy a complementary strand of the unzipped DNA strand, mRNA leaves through a neuclear pore and attaches to the ribosome, tRNA brings amino acids in order of base sequence on mRNA.

- 3 forms of RNA

-Transfer RNA-around 80 neuclotides long which folds up and is stabalized by hydrogen bonds.

-Messenger RNA- a single…