Vocabulary: Mouse Genetics (Two Traits)

University:
Minnesota State University Moorhead
Course:
BIOL-341 | Genetics
Academic year:

2025
Views:

315

Pages:

1
Author:

pro yur

Vocabulary: Mouse Genetics (Two Traits) Vocabulary   Allele – one of two or more forms that a gene could take. o Dominant alleles are always expressed in the organism when they are present. o Recessive alleles are only expressed when the dominant allele is not present. o Usually dominant alleles are represented by capital letters. Recessive alleles are represented by lowercase letters. Genotype – the genetic makeup of an organism. o  Phenotype – the physical appearance of an organism. o  Organisms with different genotypes can have the same phenotype. For example, an FF mouse and an Ff mouse both have black fur. Probability – the likelihood of an event. o  The alleles possessed by an organism are represented by symbols. For example, a mouse with white fur might have the genotype ff. Probability can be expressed as a fraction, decimal, or percentage. If the odds of an event are one in four, the probability is 1/4, 0.25, or 25%. Punnett square – a diagram that shows the possible offspring of two parents. o Punnett squares allow for the determination of the probability of each offspring’s genotype. 2019