The selection and breeding of an organism for desired traits

The passing of traits from parents to offspring.

A genetic factor that blocks another genetic factor.

A genetic factor that is blocked by the presence of a dominant factor

The alleles of all the genes on an organism’s chromosomes make up this on an organism

How the traits appear or are expressed

When an organism’s genotype has two different alleles for a trait

When an organism’s genotype has two identical alleles for a trait

A cross between two individuals that are hybrids for one trait

Shows the probability of all possible genotypes and phenotypes of offspring

When an offspring’s phenotype is a combination of its parent’ phenotypes

When both alleles can be independently observed in a phenotype

Shows genetic traits that were inherited by members of a family

Any permanent change in the sequence of DNA in a gene or chromosome of a cell

Slight differences in inherited traits among individuals in a population

The process by which individuals with variations that help them survive in their environment live longer, compete better, and reproduce more than those individuals without these variations.