heredity Flashcards
Heredity
The inheritance of a title, office, or right.
Dominant Trait
an inherited characteristic that appears in an offspring if it is contributed from a parent through a dominant allele
Recessive Trait
a trait that is expressed only when phenotype is homologous
Genes
The basic unit of heredity passed from parent to child.
Alleles
the alternative form or versions of a gene
Phenotype
The observable characteristics in an individual resulting from the expression of genes
Genotype
the genetic makeup of an organism;
Probability
how likely something is to happen
Meiosis
type of cell division in sexually reproducing organisms that reduces the number of chromosomes in gametes
Sex chromosomes
a type of chromosome involved in sex determination
Pedigree
an ancestral line; line of descent; lineage; ancestry
DNA
the hereditary material in humans and almost all other organisms.
Nucleotide
one of the structural components, or building blocks, of DNA and RNA
Mutations
a change in one or more genes.
RNA
a nucleic acid present in all living cells that has structural similarities to DNA
