Download Mendelian Genetics Objectives (Chapter 14)

Mendelian Genetics Objectives (Chapter 14)
After reading
to:
this chapter and attending class (and actively participating), you should be able
1. Explain Mendel's theory of inheritance
2. State and explain the Law of Segregation
3. Distinguish between: genotype and phenotype, heterozygous and homozygous; and
dominant and recessive
4. Use a Punnett Square to predict the results of a monohybrid cross and state the
phenotypic and genotypic ratios of the F2 generation
5. Explain how a testcross can be used to test whether a dominant phenotype is
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homozygous or heterozygous
Define the concept "random event" and explain why it is significant that allele segregation
during meiosis and fusion of gametes at fertilization are random events
Apply the "multiplication" rule to predicting probabilities of specific outcomes from genetic
crosses
Apply the "addition" rule to predicting probabilities of specific outcomes from genetic
crosses
Use a Punnett Square to predict the results of a dihybrid cross and state the phenotypic
and genotypic ratios of the F2 generation
Predict the results of genetic crosses involving three or more unlinked genes
Give an example of incomplete dominance and explain how it differs from "blending
inheritance"
Describe inheritance within the ABO blood group system
Define and give an example of pleiotropy
Explain what is meant by the phenomenon of epistasis
Describe how environmental factors can influence the phenotypic expression of a
character
Deduce the genotypes for family members when presented with a simple pedigree
Explain how a lethal recessive gene can be maintained within a population
Explain why lethal dominant genes are more rare than lethal recessive genes
Give and example of a late-acting lethal dominant in humans and explain how it can
escape elimination
Explain why consanguinity increases the probability of homozygosity in offspring