DNA and RNA Nucleotides l DNA and RNA
- Slides: 12
DNA and RNA
Nucleotides l DNA and RNA are composed of several nucleotides. l A nucleotide contains a sugar, a phospate and a nitrogenous base (A, U (rna), T, C, or G)
Backbone structure of RNA & DNA l Both backbones of DNA & RNA are composed of repeated sequences of sugars (deoxyribose or ribose) and phosphates
l DNA = Deoxyribo. Nucleic Acid l RNA = Ribo. Nucleic Acid
About DNA l Double stranded (2 strands) l Four bases (A, T, C, G: Adenine, Thymine, Cytosine, Guanine) l A&T are always paired; G&C are always paired l Double helix shaped l Deoxyribose (sugar)
DNA l Chemical substance in all living things l Controls the functions of cells l Located in the _____. l DNA controls what cells will become (specialize), and what type of organism will be produced (human, bird, etc)
About RNA l Single stranded (1 strand) l Protein synthesis l Four bases A, U, C, and G l U = Uracil l A & U are always paired; G&C are always paired l Ribose (sugar)
Types of RNA l m. RNA (messenger RNA): brings instructions from DNA inside of the nucleus to the cytoplasm.
Types of RNA l r. RNA (ribosomal RNA): uses instructions from the m. RNA to assemble amino acids l t. RNA (Transfer RNA): transfers amino acids to the ribosomes so that they can make PROTEINS.
The Central Dogma l. DNA→RNA→Proteins l. The flow of information goes from DNA to RNA, and finally to proteins.
Transcription l. A double stranded DNA helix unzips and a single strand of m. RNA is created. l Refer to p. 290 -291
Translation l When the nitrogenous bases (A, U, C, and G) from m. RNA are converted into amino acids that will later make proteins.
- Amino acid nucleotide
- When dna untwists, unzips, and nucleotides fill in.
- Four nucleotides of dna
- Order of nucleotides in dna
- Chapter 11 dna and genes
- Rna transfer
- Comparing dna and rna worksheet answers
- Dna to protein steps
- Venn diagram of transcription and translation
- Dna and rna coloring worksheet
- Transfer rna
- Nucleic acid dna structure
- Rnabases