unit 6 lesson 11 study guide
1. What is the difference between a genotype and a phenotype?
- A genotype refers to an individual’s genetic makeup, while a phenotype refers to an individual’s physical characteristics.
2. How do we inherit traits from our parents?
- We inherit traits from our parents through genes, which are segments of DNA.
3. What is a dominant trait?
- A dominant trait is a trait that will always be expressed in an individual if they have one copy of the corresponding gene.
4. What is a recessive trait?
- A recessive trait is a trait that will only be expressed in an individual if they have two copies of the corresponding gene.
5. What is a carrier?
- A carrier is an individual who has one copy of a recessive gene for a particular trait, but does not express the trait themselves.
6. What is a pedigree?
- A pedigree is a chart that shows the relationships between individuals in a family, and can be used to trace the inheritance of traits over several generations.
7. What is genetic counseling?
- Genetic counseling is a process in which a trained professional helps individuals and families understand their risk of inherited disorders and make informed decisions about genetic testing and family planning.