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Genetic Terms

Course Outline

III. Mendelian Genetics
    A.   How Genetics Began
    B.  The Inheritance of Traits
        1.    F1 and F2 generations
        2.   Genes in pairs
        3.   Dominance   
        4.   Genotype and phenotype
        5.   Mendel’s law of segregation
        6.   Monohybrid cross
        7.   Dihybrid cross
        8.   Law of independent assortment
   C.   Punnett Squares
       1.    Punnet Square-monohybrid cross
       2.   Punnet square-dihybrid cross
    D.   Probability 
Teaching Aids

1.  Computer

2.  Smart Board

3.  Powerpoint

4.  Index cards for students to use to make vocabulary cards.  The following words will be written on one side of the card and

the definition for that word written on the back:  dihybrid cross, monohybrid cross, phenotype, genotype, homozygous,

heterozygous, dominant trait, recessive trait, incomplete dominance, codominance, allele, Punnett square.

 

Class Projects

Genetics Vocabulary Project

Create a Criss-Cross puzzles online with Discovery School's "Puzzlemaker" using the genetic terms

listed:  dihybrid cross, monohybrid cross, phenotype, genotype, homozygous, heterozygous, dominant

trait, recessive trait, incomplete dominance, codominance, allele, Punnett square. 

 

Review Questions

Genetics Review

1.        The observable expression of an allele is called a ___________.

a.        Recessive gene

b.      Genotype

c.       Monohybrid cross

d.      Phenotype

.   

2. Which statement pertains to Mendel’s law of segregation?

            a.  Homozygous organisms are called hybrids

            b.  Two alleles for each trait separate during meiosis

            c.  allele pairs are called a genotype

            d.  dominant traits are visible

3.  What technique did Mendel use to better understand inherited traits?         

   a.  removed dominant alleles            b.  cross pollinated same sex plants           

c.  allowed plants to self fertilize            d.  cross pollinated males and females

 

4.  Which of these pertains to Mendel’s law of independent assortment?          

a.  observable characteristics of a trait          b.  separation of alleles during meiosis       

  c.  random distribution of alleles d.  protein production

 

Links

 

Sometimes students get a clearer understanding by reading different sources for information.  They may try this link to learn more about

genetics. http://bcs.whfreeman.com/pierce2e/default.asp?s=&n=&i=&v=&o=&ns=0&uid=0&rau=0

Other Useful Information

Students will visit this website http://intro.bio.umb.edu/VGL/, the virtual genetics lab and follow the simulations provided to gain an

understanding of genetics research.  Students will cross hypothetical creatures and examine progeny to determine the mechanism of

inheritance of a particular trait.

 

 

 

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