A segment of DNA that codes for a trait
an observable characteristic
Genetic traits are determined by one or more
A version or variation of a gene
The alleles that an organism has/inherits are its
The observable expression of a trait is its
When an organism has two of the same alleles, it is called
When an organism has two different alleles, it is called
Long strands of DNA are wrapped into
______ is the set of genes possessed by someone
Humans have _______ pairs of chromosomes, for a total of _______ chromosomes.
The physical expression of a trait.