Adenine is a nitrogen base that always pairs with what other nitrogen base. (a)  

Guanine, a nitrogen base, always pairs with this nitrogen base. (a)  

This is a section of DNA on a chromosome that contains instructions for making specific proteins. (a)  

The study of how traits are inherited through the actions of alleles (a)  

The entire DNA in one cell of an organism. (a)  

The genetic makeup of an organism or allele combinations (Ex. Tt, TT, tt) (a)  

The physical trait of an organism that you actually see (Ex. Blue Eyes, Brown Hair) (a)  

Passing of traits from parents to offspring is called (a)   .

An organism that is genetically identical to the organism from which it was produced (a)  

Process of selecting a few organisms with desired traits to serve as parents of the next generation (like toy dogs) (a)  

Any permanent change in an organism's genetic material (a)  

Each form of a gene; a different form a gene may have for a trait.  The two forms are dominant and recessive. (a)  

A trait that always shows up in the organism or covers up another trait. (a)  

A trait that only shows up in an organism when it is paired with another recessive trait. (dominated by the dominant gene) (a)  

Traits that are opposite (Tt) (hybrid) (a)  

Traits are the same (TT, tt)  (pure, purebred) (a)  

Hereditary material made up of proteins and DNA. (looks like spaghetti while in the interphase part of the cell cycle) (a)  

Rod-shaped structures made up of condensed DNA that are located in the nucleus of every cell in an organism. (forms in Prophase during Mitosis) (a)  

The parents' genotypes are (a)  

If T = tallness, the probability that the offspring with be tall in this example is (a)