Chapter 3- Heredity Flashcards
One of the alternative forms of a gene that governs a characteristic such as hair color
Alleles
One set of instructions for an inherited trait
Genes
An organism appearance or other detectable characteristic
Phenotype
The entire genetic makeup of a organism; also the combination of genes for one or more specific traits
Genotype
The likelihood that a possible future event will occur in any instance of the event
Probability
A process in cell division during which the number of chromosomes decreases to half the original number by two divisions of the nucleus, which results in the production of sex cells
Meiosis
One of he pair of chromosomes that determine the sex of an individual
Sex chromosomes
A diagram that shows the occurrence of a genetic trait in several generations of a family
Pedigree
