Heredity Flashcards
the passing of genetic traits from parent to offspring.
Heredity
the trait observed in the first generation when parents have different traits are bred.
Dominant trait
a trait that is apparent only when 2 recessive alleles for the same characteristic are inherited.
Recessive Trait
one set of instructions for a inherited trait.
Genes
one of the alternative forms of a gene that governs a characteristic such as hair color.
Alleles
an organisms appearance or another detectable characteristic.
Phenotype
the entire genetic makeup of an organism; also the combo of genes for one or more specific traits.
Genotype
the likelihood that a possible future event will occur in any given instance of the event.
Probability
a process in cell division during which number of chromosomes decreases to half the original number by two divisions of the nucleus, which results in the production of sex cells.
Mitosis
one of the 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
deoxyribonucleic acid, a self-replicating material present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information.
DNA
in a nucleic-acid chain, a subunits that consists of sugar a phosphate, and a nitrogenous base.
Nucleotide
a change on the nucleotide-base sequence of a gene or DNA molecule.
Mutations
ribonucleic acid, a nucleic acid present in all living cells. Its principal role is to act as a messenger carrying instructions from DNA for controlling the synthesis of proteins, although in some viruses RNA rather than DNA carries the genetic information.
RNA