Genetics


 * Tuesday, April 15**

Genetic Quiz

Work period - Problems at the end of chapter 15

Final Test on genetics (Chapter 14 and 15) will be on Monday, April 21st.


 * Monday, April 14**

Finish Chapter 15.

Look at result of changes in the number of chromosomes and changes to the chromosomes themselves.


 * Friday, April 11**

Hand in work P. 285 # 20, 21 and 22

Discussion of P. 292 Concept Check Discuss linked genes and genetic recombination Mapping genes on a chromosome. Concept Check P. 296 # 1, 2 and 3


 * Thursday, April 10**

Chapter 15 Chromosomal Basis on Inheritance Pass out chapter objectives. Discuss the location of genes along chromosomes and how the law of segregation and the law of independent assortment can be seen in chromosomes during meiosis. Discuss Thomas Hunt Morgan’s experiment and results to demonstrate the link between “heritable factors (genes)” and chromosomes. Highlight the discovery of sex linked traits. Pattern of inheritance based on sex-linked genes and X inactivation in female mammals Work: p. 292 Concept Check # 1, 2 and 3




 * Wednesday, April 9**

Handed back tests.

Students work period;

Finish worksheet Textbook – P. 283 Tips for Genetics Problems Textbook – P. 284 and 285 Work on exercises.


 * Tuesday, April 8**

Quiz on genetic probability: P. 284 # 4 (15 minutes)

Look at a variety of characters found in human based on the alleles of one gene.

Due on Friday P. 285 Evolution Connection #20 Scientific Inquiry #21 Science, Technology, and Society #22


 * Monday, April 7**

Correction of problem on genetic probability and # 9 and 10 on worksheet.

Finish chapter 13.

Friday, April 4

Correction of problems. Rules of probability to calculate the ratios of characteristics of offspring. Rule of multiplication and rule of addition. Using rules of probability to Solve Genetics Problems


 * Thursday, April 3**

Correction of problems from the worksheet. Look at ratios obtained during a dihybrid cross. Problems from the worksheet.


 * Wednesday, April 2**

Look at monohybrid crosses. Differentiate between genotype and phenotype. Examples of problems with monohybrid crosses. Test Crosses to determine whether an individual is homozygous dominant or heterozygous. Start worksheet.

Tuesday, April 1 Monday, March 31
Begin chapter 14 - Mendel and the Gene idea. Discuss the concept of traits and alleles. Review the work of Mendel and a brief history of his life. Review the use of ratios from a variety of plants or organisms in general to be able to develop the rules of genetics. Discuss the symbols used to represents the alleles and how these symbols are used to represent the genes present on the chromosomes in the gametes.

(Quiz on mitosis and meiosis)

Explain why the alleles are always represented in pairs. Use the information from meiosis to link the symbols used in genetics with reality. Review the differences between genotype and phenotype. Look at monohybrid crosses and demonstrate the use of the Punnett Square.