rna and protein synthesis
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DNA & RNA
Nucleic acids that make up the genetic material in cells
deoxyribose
DNA sugar
Ribose
RNA sugar
Messenger RNA (mRNA)
Temporary copy of a gene (portion of DNA) which codes for a protein
transcription
-RNA Polymerase (enzyme) attaches to DNA & unzips the part of the DNA that codes for how to make the protein -Using the exposed DNA as a template, mRNA is made by assembling nucleotides that correspond to the DNA nucleotides
translation
ribosomes synthesize proteins by decoding the genetic information carried by mRNA
Ribosomal RNA (rRNA)
Type of RNA that makes up the ribosome…. ultimately help to make the proteins
Transfer RNA (tRNA)
These are attached to the amino acids in the cell & they bring (transfer) the needed amino acids to the ribosome for protein assembly
modified guanine nucleotide (mG)
attached to the start of the mRNA (helmet)
100-200 adenine nucleotides
attached to the other end (called the poly-A-tail) (sword)
introns
Must remove some internal segments of mRNA that don’t code for the protein
codon
Every 3 letters of the mRNA -codes for 1 amino acid -AUG GAU CGC
exons
The parts that are left that actually codes for the protein