Exam 3 will cover at least chapters 7 and 8; perhaps chapter 9.  Make sure to be present for the review session to know what the content will be, and where it will be split - if that is the case.

Read the text, so that you have the proper context for the material covered on the exam.

Do not be late for the exam, since by being late you might not be able to take the exam and your grade might be seriously affected.

Some of the questions below apply to the material that will be on the exam.  These are general questions that are open-ended, meaning that the more that one can answer on any specific question, the better-prepared one should be.

From chapter 7, know the equation for photosynthesis.  Know where the light reactions and Calvin cycle of photosynthesis occur, and also what the reactants and products are for each.  Know about light wavelengths and what light is used or not used during photosynthesis.  Know what the main pigment in photosynthesis is and where it can be found in a plant; know the significance of additional pigments.  Know the flow electrons in photosynthesis; where they come from, what moves them around, and the final electron acceptor.  Know the difference between C3, C4, and CAM plants.

From chapter 8, know the importance of the cell cycle, the role of mitosis in the cell cycle, and what happens when the cell cycle goes wrong.  Know the main steps of the cell cycle and what happens in each; know the steps of mitosis and meiosis, and the main things happening during each step.  Know the purpose of mitosis and the purpose of meiosis; be able to compare and contrast the two processes.  Know the concept of alternating generations of a life cycle, and the importance of haploid and diploid cells.  Know about haploid and diploid, in general; know how they fit into meiosis, in specific.  Know about recombination and independent assortment in meiosis, and the general result of both.  Know about chromosomes, and understand related terms (e.g., chromatin, DNA, histones, duplicated chromosome, centromere, sister chromatids, homologous chromosomes, etc.)  Know about nondisjunction.

From chapter 9, know what are genes and what are alleles?  What does purebred or true-breeding mean?  What was the general nature of Mendel’s breeding program, in terms of Parent crosses, F1 hybrids, F1 crosses, and F2 hybrids?  What are monohybrid and dihybrid crosses?  What were the typical ratios Mendel observed in the F1 and F2 offspring of his mono- and dihybrid crosses? Be able to define and understand the terms dominant, recessive, genotype, phenotype, homozygous, and heterozygous.  What is the law of segregation?  The law of independent assortment? Know how to predict offspring phenotypes and genotypes from simple crosses. Know about “carriers”, codominance, incomplete dominance, multiple alleles, multiple genes or polygenics, gene linkage, and sex chromosome inheritance (sex linkage).