Most genes contain information to build proteins
Proteins are too big to be formed in the nucleus
A copy of DNA must be carried out of the nucleus by RNA
Embryonic Mouse Cells: nucleus, mitochondria, and actin
RNA
RNA vs DNA
Both nucleic acids
RNA is single-stranded
RNA uses the sugar ribose
RNA uses uracil (U) instead of thymine (T)
Messenger RNA (mRNA)
A complementary copy of a gene
mRNA is read in 3-base sequences called codons
Ribosome
Contains ribosomal RNA (rRNA)
Proteins are assembled in the ribosome
Transfer RNA (tRNA)
Brings amino acids to the ribosome
Central Dogma
Information flow: DNA → mRNA → ribosome → tRNA → Protein
tRNA
Proteins are too big to be formed in the nucleus
A copy of DNA must be carried out of the nucleus by RNA
Embryonic Mouse Cells: nucleus, mitochondria, and actin
RNA
RNA vs DNA
Both nucleic acids
RNA is single-stranded
RNA uses the sugar ribose
RNA uses uracil (U) instead of thymine (T)
Messenger RNA (mRNA)
A complementary copy of a gene
mRNA is read in 3-base sequences called codons
Ribosome
Contains ribosomal RNA (rRNA)
Proteins are assembled in the ribosome
Transfer RNA (tRNA)
Brings amino acids to the ribosome
Central Dogma
Information flow: DNA → mRNA → ribosome → tRNA → Protein
tRNA
