Test Crosses definitions Flashcards

The genetic trait determining the seed color in pea plants, where yellow is dominant (Y) and green is recessive (y), used to study inheritance patterns.

The genetic makeup of an organism, consisting of the alleles inherited from both parents, determining specific traits.

Observable traits of an organism, resulting from the interaction of its genetic makeup and environmental influences.

A genetic cross between an organism with an unknown genotype and a homozygous recessive organism to determine the unknown genotype based on offspring phenotypes.

A grid used to predict the genotypes of offspring from a cross between two organisms, showing how alleles combine from each parent.

Having two identical dominant alleles for a specific gene, resulting in the expression of the dominant trait.

Having two different alleles for a specific gene, one dominant and one recessive, resulting in a mixed genotype.

An organism with two identical recessive alleles for a specific trait, resulting in the expression of the recessive phenotype.

A variant form of a gene at a specific locus on a chromosome, responsible for different traits, such as pea color, which can be dominant or recessive.

The biological descendants resulting from the genetic combination of two parent organisms.