RNA and Transcription DNA RNA PROTEIN

RNA and Transcription

RNA Ribonucleic Acid another type of nucleic acid similar to DNA found in cells also a polymer made of nucleotides takes information from the nucleus to the rest of the cell

DNA-RNA Comparison Chart nucleotide sugar nitrogen bases number of strands location in the cell

DNA-RNA Comparison Chart nucleotide sugar deoxyribose nitrogen bases number of strands location in the cell

DNA-RNA Comparison Chart nucleotide sugar deoxyribose nitrogen bases adenine, cytosine, guanine, thymine number of strands location in the cell

DNA-RNA Comparison Chart nucleotide sugar deoxyribose nitrogen bases adenine, cytosine, guanine, thymine number of strands double (2) location in the cell

DNA-RNA Comparison Chart nucleotide sugar deoxyribose nitrogen bases adenine, cytosine, guanine, thymine number of strands double (2) location in the cell nucleus

DNA-RNA Comparison Chart nucleotide sugar deoxyribose ribose nitrogen bases adenine, cytosine, guanine, thymine number of strands double (2) location in the cell nucleus

DNA-RNA Comparison Chart nucleotide sugar deoxyribose ribose nitrogen bases adenine, cytosine, guanine, thymine uracil number of strands double (2) location in the cell nucleus

DNA-RNA Comparison Chart nucleotide sugar deoxyribose ribose nitrogen bases adenine, cytosine, guanine, thymine uracil number of strands double (2) single (1) location in the cell nucleus

DNA-RNA Comparison Chart nucleotide sugar deoxyribose ribose nitrogen bases adenine, cytosine, guanine, thymine uracil number of strands double (2) single (1) location in the cell nucleus nucleus & cytoplasm

Transcription process in which part of the nucleotide sequence of DNA is copied into a complementary sequence in RNA synthesis (making) of RNA

Transcription during transcription, RNA polymerase binds to DNA at a promoter (start) site unzipping the DNA double strand

Transcription

Transcription Animation 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 Exon sequence of DNA that is NOT involved in coding for a protein Exon expressed sequence of DNA that codes for a protein

RNA Editing

3 types of RNA mRNA = messenger RNA carries message from DNA in the nucleus into cytoplasm where ribosomes are located

3 types of RNA tRNA = transfer RNA connects amino acids to protein chain

3 types of RNA rRNA = ribosomal RNA makes up a portion of a ribosome

DNA after Transcription after transcription of RNA is complete, the strands of the DNA double helix hydrogen bond back together at the nitrogen bases allows DNA to remain unchanged and used for the transcription of additional RNA molecules

RNA after Transcription after mRNA is edited, it leaves the nucleus

RNA after Transcription once it gets to the ribosome, it will help make a protein

Think, Pair, Share…

1. Is the RNA strand below copied from the DNA strand on the left or the DNA strand on the right? 2. How do you know?

1. The RNA is made from the strand on the LEFT. 2 1. The RNA is made from the strand on the LEFT. 2. RNA is transcribed complementary.

Summary Transcribe the template DNA strand on the right into a single stranded piece of mRNA.