3.1: Overview and Purpose
Overview and Purpose
Students will observe single gene traits and relate the observations to possible genotypes of individuals. Inheritance patterns are discussed and students will analyze pedigrees to identify inheritance patterns of traits within a population. Human karyotypes will be observed and chromosomal differences will be correlated with human chromosomal syndromes. Students will gain a basic understanding of how phenotypes are determined by alleles on chromosomes and the differences in inheritance patterns of traits.
Learning Outcomes
- Identify possible genotypes of individuals from observed phenotypes
- Visually identify abnormalities in human karyotypes
- Identify genotypes of individuals within human pedigrees
- Observe human single gene traits within a group
- Correlate phenotypes of single gene traits to possible genotypes
- Analyze pedigrees to determine patterns of inheritance
- Analyze karyotypes to identify chromosomal abnormalities
Vocabulary
Chromosome
Homologous chromosomes
Gene
Allele
Dominant allele
Recessive allele
Homozygous
Heterozygous
Genotype
Phenotype
Autosomes