Unit 1 topic 4 vocabulary Flashcards
what is Heredity
is the passing on of traits from parents to offspring.
what are Genetics
is the scientific study of how traits are passed on from parents to their offspring
continuos variation
characteristics that have a range of possibilities
discrete variation
characteristics that have a limited range of possibilities
what is a dominant trait
shows up if you have inherited the dominant gene for that trait from one or both of your parents
what is a recessive trait
shows up only if you have inherited the recessive gene from both of your parents. Ex you get blue eyes only if you are bb.
mutation
a change in the genetic information of DNA of and organism
mutagens
an agent that can cause changes in the genetic information of an organism
DNA
a molecule that stores genetic information for heritable traits and directs the structure and functions cells.