Lab 2 Flashcards
This genetic variation can be organized into genotypes, which catalog the versions of genes, or
alleles
The original progenitors of a genetic cross are called the ________ and are typically from unrelated strains.
P generation
Crossing an F1 female and an F1 male produces the second filial generation, or
F2
In order to determine the effect that the sex of an individual has on the inheritance of a trait, a reciprocal cross is carried out, in which
the phenotype of each sex is reversed as compared to the original cross.
He studied crosses in which a single trait varied in the offspring, also known as a
monohybrid cross.
One of these, the Principle of Segregation, states that
each diploid organism possesses two alleles, and these alleles separate into different gametes during meiosis.
Other eye mutations in D. melanogaster affect the size of the eye and the number or organization of ommatidia, which are
structures that contain the light-sensitive rods and cones
X squared =
Sum of (observed-expected)^2/expected
df=
n-1
