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What is a monohybrid cross used for?
To study only two variations of a single trait.
What does Fi represent in Mendelian genetics?
The first filial generation, or the offspring produced by crossing two true-breeding strains.
What ratio did Mendel observe for dominant and recessive traits in the F2 generation?
A 3:1 ratio for phenotypes.
What are the three genotypes represented in the F2 generation?
1 true-breeding dominant, 2 not true-breeding dominant, and 1 true-breeding recessive.
What is a phenotype?
The observable expression of the genes present in an organism.
What principle states that two alleles for a gene segregate during gamete formation?
The Principle of Segregation.
What type of organism has two identical alleles for a given trait?
A homozygous organism.
What is the phenotypic ratio of a dihybrid cross?
9:3:3:1 ratio.
Define an allele.
An alternative form of a gene.
What does the Principle of Independent Assortment state?
The alleles of each gene assort independently during gamete formation.
Note 
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