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RNA and Transcription DNA RNA PROTEIN

RNA and Transcription DNA RNA PROTEIN. RNA and Transcription

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Page 1: RNA and Transcription DNA RNA PROTEIN. RNA and Transcription

RNA and Transcription

DNA

RNA

PROTEIN

Page 2: RNA and Transcription DNA RNA PROTEIN. RNA and Transcription

RNA and Transcription

Page 3: 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

Page 4: RNA and Transcription DNA RNA PROTEIN. RNA and Transcription

DNA-RNA Comparison Chart

DNA RNA

sugar

bases

strands

found

Page 5: RNA and Transcription DNA RNA PROTEIN. RNA and Transcription

DNA RNA

sugar Deoxyribose

bases

strands

found

DNA-RNA Comparison Chart

Page 6: RNA and Transcription DNA RNA PROTEIN. RNA and Transcription

DNA RNA

sugar Deoxyribose Ribose

bases

strands

found

DNA-RNA Comparison Chart

Page 7: RNA and Transcription DNA RNA PROTEIN. RNA and Transcription

DNA RNA

sugar Deoxyribose Ribose

basesAdenine, cytosine, guanine,

thymineAdenine, cytosine, guanine,

strands

found

DNA-RNA Comparison Chart

Page 8: RNA and Transcription DNA RNA PROTEIN. RNA and Transcription

DNA RNA

sugar Deoxyribose Ribose

basesAdenine, cytosine, guanine,

thymineAdenine, cytosine, guanine,

uracil

strands

found

DNA-RNA Comparison Chart

Page 9: RNA and Transcription DNA RNA PROTEIN. RNA and Transcription

DNA RNA

sugar Deoxyribose Ribose

basesAdenine, cytosine, guanine,

thymineAdenine, cytosine, guanine,

uracil

strands double (2)

found

DNA-RNA Comparison Chart

Page 10: RNA and Transcription DNA RNA PROTEIN. RNA and Transcription

DNA RNA

sugar Deoxyribose Ribose

basesAdenine, cytosine, guanine,

thymineAdenine, cytosine, guanine,

uracil

strands double (2) single (1)

found

DNA-RNA Comparison Chart

Page 11: RNA and Transcription DNA RNA PROTEIN. RNA and Transcription

DNA RNA

sugar Deoxyribose Ribose

basesAdenine, cytosine, guanine,

thymineAdenine, cytosine, guanine,

uracil

strands double (2) single (1)

found nucleus

DNA-RNA Comparison Chart

Page 12: RNA and Transcription DNA RNA PROTEIN. RNA and Transcription

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

Page 13: RNA and Transcription DNA RNA PROTEIN. RNA and Transcription

Transcription• process in which part of the nucleotide

sequence of DNA is copied into a complementary sequence in RNA

Page 14: RNA and Transcription DNA RNA PROTEIN. RNA and Transcription

Transcription• during transcription, RNA polymerase

binds to DNA at a promoter (start) site unzipping the DNA double strand

Page 15: RNA and Transcription DNA RNA PROTEIN. RNA and Transcription

Transcription

Page 16: RNA and Transcription DNA RNA PROTEIN. RNA and 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

Page 17: RNA and Transcription DNA RNA PROTEIN. RNA and Transcription

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

Page 18: RNA and Transcription DNA RNA PROTEIN. RNA and Transcription

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

Page 20: RNA and Transcription DNA RNA PROTEIN. RNA and Transcription

3 types of RNA

Page 21: RNA and Transcription DNA RNA PROTEIN. RNA and Transcription

3 types of RNA

mRNA =

Page 22: RNA and Transcription DNA RNA PROTEIN. RNA and Transcription

3 types of RNA

mRNA = messenger RNA

Page 23: RNA and Transcription DNA RNA PROTEIN. RNA and Transcription

3 types of RNA

mRNA = messenger RNA

tRNA =

Page 24: RNA and Transcription DNA RNA PROTEIN. RNA and Transcription

3 types of RNA

mRNA = messenger RNA

tRNA = transfer RNA

Page 25: RNA and Transcription DNA RNA PROTEIN. RNA and Transcription

3 types of RNA

mRNA = messenger RNA

tRNA = transfer RNA

rRNA =

Page 26: RNA and Transcription DNA RNA PROTEIN. RNA and Transcription

3 types of RNA

mRNA = messenger RNA

tRNA = transfer RNA

rRNA = ribosomal RNA

Page 27: RNA and Transcription DNA RNA PROTEIN. RNA and Transcription

3 types of RNA

mRNA = messenger RNA

tRNA = transfer RNA

rRNA = ribosomal RNA