rna and transcription dna rna protein. rna and transcription
TRANSCRIPT
RNA and Transcription
DNA
RNA
PROTEIN
RNA and Transcription
RNA• Ribonucleic Acid• another type of nucleic acid found in
cells– also made of nucleotides
• takes information from the nucleus to the rest of the cell
DNA-RNA Comparison Chart
DNA RNA
sugar
bases
strands
found
DNA RNA
sugar Deoxyribose
bases
strands
found
DNA-RNA Comparison Chart
DNA RNA
sugar Deoxyribose Ribose
bases
strands
found
DNA-RNA Comparison Chart
DNA RNA
sugar Deoxyribose Ribose
basesAdenine, cytosine, guanine,
thymineAdenine, cytosine, guanine,
strands
found
DNA-RNA Comparison Chart
DNA RNA
sugar Deoxyribose Ribose
basesAdenine, cytosine, guanine,
thymineAdenine, cytosine, guanine,
uracil
strands
found
DNA-RNA Comparison Chart
DNA RNA
sugar Deoxyribose Ribose
basesAdenine, cytosine, guanine,
thymineAdenine, cytosine, guanine,
uracil
strands double (2)
found
DNA-RNA Comparison Chart
DNA RNA
sugar Deoxyribose Ribose
basesAdenine, cytosine, guanine,
thymineAdenine, cytosine, guanine,
uracil
strands double (2) single (1)
found
DNA-RNA Comparison Chart
DNA RNA
sugar Deoxyribose Ribose
basesAdenine, cytosine, guanine,
thymineAdenine, cytosine, guanine,
uracil
strands double (2) single (1)
found nucleus
DNA-RNA Comparison Chart
DNA RNA
sugar Deoxyribose Ribose
basesAdenine, cytosine, guanine,
thymineAdenine, cytosine, guanine,
uracil
strands double (2) single (1)
found nucleus nucleus & cytoplasm
DNA-RNA Comparison Chart
Transcription• process in which part of the nucleotide
sequence of DNA is copied into a complementary sequence in RNA
Transcription• during transcription, RNA polymerase
binds to DNA at a promoter (start) site unzipping the DNA double strand
Transcription
RNA polymerase• enzyme that produces RNA• uses one of the DNA strands as a
template from which RNA nucleotides are assembled to make mRNA– mRNA = messenger RNA
Transcription Animation
RNA Editing
• before the mRNA can leave the nucleus it has to be edited– it receives a cap and a tail– introns are cut out and exons spliced
together
RNA Editing• Intron
– sequence of DNA that is NOT involved in coding for a protein
• Exon– expressed sequence
of DNA that codes for a protein
3 types of RNA
3 types of RNA
mRNA =
3 types of RNA
mRNA = messenger RNA
3 types of RNA
mRNA = messenger RNA
tRNA =
3 types of RNA
mRNA = messenger RNA
tRNA = transfer RNA
3 types of RNA
mRNA = messenger RNA
tRNA = transfer RNA
rRNA =
3 types of RNA
mRNA = messenger RNA
tRNA = transfer RNA
rRNA = ribosomal RNA
3 types of RNA
mRNA = messenger RNA
tRNA = transfer RNA
rRNA = ribosomal RNA