M10 TZ2 Review

Paper 1

interphase G1: growth, protein synthesis, increase in the number of mitochondria and/or chloroplasts S: DNA replication G2: growth, protein synthesis, preparation for mitosis/cytokinesis

DNA profiling 2. Polymerase chain reaction Purpose: make copies of DNA Two strands of DNA separate (DNA denaturation due to high temperature) DNA polymerase from Thermus aquaticus (a bacteria that lives in hot springs) Synthesizes new DNA strand by using complementary strand as template http://highered.mcgraw-hill.com/sites/0072556781/student_view0/chapter14/animation_quiz_6.html

Check out i-Biology + Green study guide

Antibiotics Antibiotics take advantage of the difference between prokaryotic and eukaryotic cells E.g. Antibiotics are designed to disrupt structures or metabolic pathways

Paper 2

How do you create a GMO? Three components: 1. The gene you want to transfer 2. The organism you want to put it into (target species) 3. The vector to carry the gene into the target species Plasmid = medium (vector) by which genes of interest are transferred to host Small loops of bacterial DNA

Cutting, pasting and copying DNA Restriction enzymes  used to cut the desired section of the DNA recognizes unique sequences of DNA in plasmid and in gene of interest Cuts complementary sticky ends in gene of interest and plasmid allow incorporation of gene of interest into plasmids DNA ligase creates covalent bonds by joining together gene of interest within plasmid, producing recombinant DNA

Paper 3

G1 d. Discuss the impact of alien species on ecosystems "Give an account including, where possible, a range of arguments for and against the relative importance of various factors, or comparisons of alternate hypotheses."

They are grouped according to the objectives of IB Biology: All IB Biology questions and assessment statements are built around these command terms, which let you know exactly what is expected of you. They are grouped according to the objectives of IB Biology: Define Draw Label List State Measure Objective 1: Demonstrate an understanding of: - scientific facts and concepts - scientific methods and techniques - scientific terminology - methods of presenting scientific information Annotate Apply Calculate Describe Distinguish Estimate Identify Outline Objective 2: Apply and Use: - scientific facts and concepts - scientific methods and techniques - scientific terminology to communicate effectively - appropriate methods of presenting scientific information Analyse Comment Compare Construct Deduce Derive Design Determine Discuss Evaluate Explain Predict Show Sketch Solve Suggest Objective 3: Construct, Analyse and Evaluate: - hypotheses, research questions and predictions - scientific methods and techniques - scientific explanations All definitions of command terms are taken from the IB Biology Subject Guide: http://xmltwo.ibo.org/publications/migrated/production-app2.ibo.org/publication/7/part/1/chapter/7.html

Today LOOK OVER all the comments that I have made on your paper/additional deductions made. MAKE A LIST of what particular sections and/or questions you need help on. I will meet with each of you one-on-one (10 – 15 min per student).