The document provides instructions for students to complete for a biology class. It highlights terms in different colors that correspond to the class objectives that need to be completed before, during, and after class. It also provides several genetics problems involving polygenic inheritance, multiple alleles, and calculating possible genotypes and phenotypes. Sources are to be cited using the CSE citation method. A self-assessment rubric is to be completed before submitting work to the online platform.

1. Blog resource: http://tinyurl.com/l363hk Click4Biology: http://click4biology.info/c4b/10/gene10.htm <br />Cite all sources using the CSE method (or ISO 690 Numerical in Word. Highlight all objective 1 command terms in yellow and complete these before class. Highlight all objective 2 and 3 command terms in green – these will be part of the discussions in class. After class, go back and review them. <br />Complete the self-assessment rubric before submitting to Moodle. Avoid printing this if possible. <br />Define polygenic inheritance.

2. Distinguish between polygenic inheritance and multiple alleles.

4. List one human and one plant example of polygenic inheritance.

5. Define contributing allele.

6. Polygenic inheritance gives rise to continuous variation within a population.

7. Explain what this means, using skin colour as an example.

12. Assume that two genes (A and B) are responsible for inheritance of skin colour, with two alleles each and that they are unlinked. The dominant alleles code for melanin production.

13. Calculate the number of possible genotypes.

14. Apply the possible genotypes to the range of phenotypes below:

16. aabbAabb

19. Explain why the phenotypes show a normal distribution.

22. Using a punnet grid, explain why it is possible for children to have skin which is darker or lighter than both parents. Mother genotype:Father genotype:<br />ABAbaBabABAbaBabOutcome and explanation. <br />Compare the advantages and disadvantages of light and dark skin.

23. Light SkinDark SkinCold ClimateLack of exposure to sunlight can result in vitamin D deficiencyHot Climate

24. State precautionary measures that could be taken by:

25. Pale-skinned people to avoid the dangers of hot climates?

27. Dark-skinned people to reduce the disadvantage of a cold climate?

28. A characteristic is controlled by two unlinked genes with two alleles. Deduce the number of possible genotypes and phenotypes.

29. A characteristic is controlled by three genes with two alleles each. Calculate the number of genotypes possible in a cross between a homozygous recessive father and a homozygous dominant mother.

30. Wheat kernel colour is controlled by three unlinked genes (A, B and C). The dominant alleles code for production of a red pigment. Deduce the phenotype ratio expected in a test cross with a wheat plant that is homozygous dominant for A, heterozygous for B and homozygous recessive for C. Show your working. Works Cited BIBLIOGRAPHY 1. Allott, Andrew. IB Study Guide: Biology for the IB Diploma. s.l. : Oxford University Press, 2007. 978-0-19-915143-1.2. Mindorff, D and Allott, A. Biology Course Companion. Oxford : Oxford University Press, 2007. 978-099151240.3. Clegg, CJ. Biology for the IB Diploma. London : Hodder Murray, 2007. 978-0340926529.4. Campbell N., Reece J., Taylor M., Simon. E. Biology Concepts and Connections. San Fransisco : Pearson Benjamin Cummings, 2006. 0-8053-7160-5.5. Taylor, Stephen. Science Video Resources. [Online] Wordpress, 2010. http://sciencevideos.wordpress.com.6. Burrell, John. Click4Biology. [Online] 2010. http://click4biology.info/.7. IBO. Biology Subject Guide. [Online] 2007. http://xmltwo.ibo.org/publications/migrated/production-app2.ibo.org/publication/7/part/2/chapter/1.html.<br />Self Assessment:<br />Essential BiologyAssessmentCriterionComplete (2)Partially complete (1)SelfMrTPresentation & OrganisationNAComplete and neat. All command terms highlighted, tables and diagrams well presented. Academic HonestyNASources cited using the CSE (ISO 690 numerical) method, with Works Cited section complete and correct. Objective 1 understandingAll answers for the following command terms correct:Most answers for the following command terms correct:Define Draw Label List Measure StateObjective 2 understandingAll answers for the following command terms correct:Most answers for the following command terms correct:Annotate Apply Calculate Describe Distinguish Estimate Identify OutlineObjective3understandingAll answers for the following command terms correct:Most answers for the following command terms correct:Analyse Comment Compare Construct Deduce Derive Design Determine DiscussEvaluate Explain Predict Show Solve Sketch SuggestLogic, notation, mathematical workingNAAnswers are presented in a logical and concise manner. SI units used most times, with correct unit symbols and definitions of terms. All mathematical working shown.Further researchNAEvidence is apparent of research and reading beyond the textbook and presentations to find correct answers to challenging questions. If any questions are unanswered, this criterion scores zero. Total (max 10):<br />