Heredity
Georgia Standard
S7L3. Obtain, evaluate, and communicate information to explain how organisms reproduce either sexually or asexually and transfer genetic information to determine the traits of their offspring.
a. Construct an explanation supported with scientific evidence of the role of genes and chromosomes in the process of inheriting a specific trait.
b. Develop and use a model to describe how asexual reproduction can result in offspring with identical genetic information while sexual reproduction results in genetic variation. (Clarification statement: Models could include, but are not limited to, the use of monohybrid Punnett squares to demonstrate the heritability of genes and the resulting genetic variation, identification of heterozygous and homozygous, and comparison of genotype vs. phenotype.)
c. Ask questions to gather and synthesize information about the ways humans influence the inheritance of desired traits in organisms through selective breeding. (Clarification statement: The element specifically addresses artificial selection and the ways in which it is fundamentally different from natural selection.)
Objective:
By the end of this unit student will be lead to an understanding of biological traits and heredity. Students will understand the roles that genes and chromosomes have in how traits are passed through generations by sexual or asexual reproductions in organisms. This understanding will guide them to the concept of selective breeding and how it can be used to produce desired traits in plants and animals with an 85% accuracy.
Essential Question:
a. How are genes, chromosomes, and heredity "related" to one another?
b. How does the sexual and asexual reproduction affect the passing of traits to offspring?
c. How is the combination of genes important in determining the inheritance of biological traits?
Genetic Course Content
