What are three ways of producing organisms with desired traits?
Selective breeding, cloning, and genetic engineering.
What is the goal of the Human Genome Project?
To identify the DNA sequence of every gene in the human genome.
What are two major causes of genetic disorders in humans?
Mutations in the DNA and changes in the overall structure and
number of chromosomes.
How do geneticists trace the inheritance of traits?
By using pedigrees.
How are genetic disorders diagnosed and treated?
By using karyotypes. They are treated through medical care, education, and job training.
What are some patterns of inheritance in humans?
Single genes with two alleles: widow's peak. Single genes with multiple alleles: blood type. Many genes: height and skin color.
What are the functions of the sex chromosomes?
They carry genes that determine whether a person is male or female.
What is the relationship between genes and the environment?
Many of a person's characteristics are determined by an interaction between genes and the environment (a person's diet).