When you study heredity, you need to be able to compare generations. in this lab, you will compare different generations of mice. the original mice that you cross are called the .the offspring from that cross are called the .

The original mice that are crossed are called parent generation. The offspring produced from this cross are called F₁ generation or first Filial generation.

The first set of organisms crossed are called parental generation and is denoted by P.

The offspring produced from this cross are called as first filial generation or F₁ generation.

The offspring produced by selfing or cross pollination of organisms of F₁ generation are called as second filial or F₂ generation.

The example is shown in the figure attached below.

P generation, F1 generation, F2 generation

Explanation:

Just did this myself