This 43-slide powerpoint presentation covers 'Topic 2.7 - DNA Replication, Transcription & Translation' in the 2016 IB Biology curriculum. Each slide includes the specific learning objective as well as key vocabulary that students should note. The topic has been divided into 3 sections:
• A - DNA Replication
• B - Transcription
• C - Translation
The presentation itself contains minimal information as it is intended to be used with teacher guidance. There are sometimes 'Video' throughout which link to relevant and informative YouTube content. The slides are formatted to be visually pleasing and to also print well for handouts or revision. Please see the preview file (first 8 slides) for an idea of the aesthetic and level of detail in the presentation. The relevant 'Essential Knowledge' can be found below.
I have had success using these presentations to review topics after students have been exposed to the material at home. I typically have the class read relevant material (book, site, etc.) and then watch the videos the day before introducing a topic. During the class period, I use the slides to structure the discussion around the IB Bio Understandings. The remaining class time is spent reinforcing the knowledge or working on activities, written test practice, or nature of science.
**These presentations are based on the IB Biology Course Guide and do not follow any textbook
As always, please let me know if you have any suggestions for improvements. These are always a work in progress!
U1: The replication of DNA is semi-conservative and depends on complementary base pairing.
U2: Helicase unwinds the double helix and separates the two strands by breaking hydrogen bonds.
U3: DNA polymerase links nucleotides together to form a new strand, using the pre-existing strand as a template.
U4: Transcription is the synthesis of mRNA copied from the DNA base sequences by RNA polymerase.
U5: Translation is the synthesis of polypeptides on ribosomes.
U6: The amino acid sequence of polypeptides is determined by mRNA according to the genetic code.
U7: Codons of three bases on mRNA correspond to one amino acid in a polypeptide.
U8: Translation depends on complementary base pairing between codons on mRNA and anticodons on tRNA.
A1: Use of Taq DNA polymerase to produce multiple copies of DNA rapidly by the polymerase chain reaction (PCR).
A2: Production of human insulin in bacteria as an example of the universality of the genetic code allowing gene transfer between species.
S1: Use a table of the genetic code to deduce which codon(s) corresponds to which amino acid.
S2: Analysis of Meselson and Stahl’s results to obtain support for the theory of semi-conservative replication of DNA.
S3: Use a table of mRNA codons and their corresponding amino acids to deduce the sequence of amino acids coded by a short mRNA strand of known base sequence.
S4: Deducing the DNA base sequence for the mRNA strand.
Dokimi IB Biology Products
IB Biology SL PPT Bundle
Topic 1 - Cell Biology PPT Bundle
• 1.1 - Intro to Cells PPT
• 1.2 - Ultrastructures of Cells PPT
• 1.3 - Membrane Structure PPT
• 1.4 - Membrane Transport PPT
• 1.5 - Origin of Cells PPT
• 1.6 - Cell Division PPT
Topic 2 - Molecular Biology PPT Bundle
• 2.1 - Molecules to Metabolism PPT
• 2.2 - Water PPT
• 2.3 - Carbohydrates & Lipids PPT
• 2.4 - Proteins PPT
• 2.5 - Enzymes PPT
• 2.6 - Structure of DNA & RNA PPT
• 2.7 - DNA Replication, Transcription & Translation PPT
• 2.8 - Cell Respiration PPT
• 2.9 - Photosynthesis PPT
Topic 3 - Genetics PPT Bundle
• 3.1 - Genes PPT
• 3.2 - Chromosomes PPT
• 3.3 - Meiosis PPT
• 3.4 - Inheritance PPT
• 3.5 - Genetic Modification & Biotechnology PPT
Topic 4 - Ecology PPT Bundle
• 4.1 - Species, Communities & Ecosystems PPT
• 4.2 - Energy Flow PPT
• 4.3 - Carbon Cycling PPT
• 4.4 - Climate Change PPT
Topic 5 - Evolution & Biodiversity PPT Bundle
• 5.1 - Evidence for Evolution PPT
• 5.2 - Natural Selection PPT
• 5.3 - Classification of Biodiversity PPT
• 5.4 - Cladistics PPT
Topic 6 - Human Physiology PPT Bundle
• 6.1 - Digestion & Absorption PPT
• 6.2 - The Blood System PPT
• 6.3 - Defense Against Infectious Disease PPT
• 6.4 - Gas Exchange PPT
• 6.5 - Neurons & Synapses PPT
• 6.6 - Hormones, Homeostasis & Reproduction PPT
Topic 7 - Nucleic Acids
• 7.1 - DNA Structure & Replication PPT