Slides in this set
What happens during transcription?
The gene that is to be transcribed unwinds and
unzips. Hydrogen bonds between the base pairs
RNA nucleotides bind to their complementary
bases with hydrogen bonds. U-A, G-C, A-T on
the template strand.
2 extra phosphoryl groups are released, which
releases energy for bonding adjacent
The mRNA that is produced is complementary to
the base sequence on the original (template)
strand of DNA. It is therefore a copy of the base
sequence o the coding strand of the length of
The mRNA then is released from the DNA,
passes out through a pore in the nuclear
envelope, and attaches itself to a ribosome.…read more
How does it work?
Polypeptides are formed using ribosomes. A
proteins sequence is dictated by the sequence of
codons on the nucleotide bases.
A codon is a triplet of nucleotide bases.
Each codon refers to an amino acid. A chain of
amino acids makes a polypeptide.…read more