PRESENTATION OUTLINE
Trait-
A characteristic or property of an organism.
Dominant trait-
A genetic trait passed from a parent to child that is more likely to be expressed.
Chromosome-
a tightly wound bundle of DNA and proteins found in the nucleus of most living cells.
Heredity-
the passing of traits from parents to offspring.
Gene-
the basic unit of heredity in a living organism; a segment of DNA or RNA.
Recessive trait-
a genetic trait that lacks the ability to manifest itself when a dominant gene is present.
Allele-
one member of a pair or series of genes on specific chromosomes in specific positions
Punnett Square-
a chart used to determine the possible genetic outcomes for offspring of a given cross
phenotype-
the observable traits of an organism passed on from parent to offspring
genotype-
internal genetic coding passed on from one generation to the next
homozygous-
a genetic condition where an individual inherits the same alleles for a particular gene from both parents.
heterozygous-
having different pairs of genes for any given pair of hereditary characteristics
DNA-
found in the nucleus of a cell, a long nucleic acid molecule containing the genetic instructions for the development and functioning of all living organisms; abbreviation for deoxyribonucleic acid
prokaryote-
individual microscopic organism with no nucleus
eukaryote-
an organism consisting of a cell or cells in which the genetic material is DNA in the form of chromosomes contained within a distinct nucleus.
