Understand the concepts of genotype and phenotype. - Explain how a person can have the allele for a particular gene but not show it.
Understand the basis of Mendelian genetics. - Define the concepts of dominant alleles and recessive alleles.
- Determine if the children of a father and mother with a certain gene combination will automatically show that trait.
- Explain how people inherit varying degrees of traits such as skin color.
Know single-gene and double factor genetic methods of inheritance. - Explain the likelihood that a particular trait will be passed on to the next generation.
- Determine the chances that children will carry two particular genes.
Understand how Mendel's model of inheritance can be modified to account for other types of genetic influences. - Understand how a person's sex can influence the expression of his or her genes.
- Understand how codominant alleles, and X-linkage explain inheritance patterns.
Understand other influences on phenotype - Explain the meaning of variable expressivity.
- Understand how both external and internal environmental factors (epigenetic affects) can influence the expression of genes.
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