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Genetics Vocabulary

GENE A segment of DNA that carries hereditary instructions and is passed from parent to offspring; located on chromosomes.
TRAIT An inherited characteristic.
GENOTYPE An organism's inherited combination of alleles.
ALELLES Multiple forms of the same gene.
HEREDITY The passing of traits from parent to offspring.
DOMINANT The trait observed when at least one dominant allele for a characteristic is inherited.
RECESSIVE A trait that is apparent only when two recessive alleles for the same characteristic are inherited.
PHENOTYPE An organisms appearance.
ASEXUAL REPRODUCTION Reproduction in which a single parent produces offspring that are identical to the parent.
SEXUAL REPRODUCTION Reproduction that requires two parents and produces offspring that will share characteristics from both parents.
HOMOZYGOUS Having two of the same alleles.
HETEROZYGOUS Having two different alleles.
CO-DOMINANCE Expressing the dominant trait when the alleles are heterozygous.
ADAPTATIONS Changes in a species that helps it to survive
SELECTIVE BREEDING the intentional mating of two animals in an attempt to produce offspring with desirable characteristics
NATURAL SELECTION The process by which organisms that are better suited to their environment than others produce more offspring
DIVERSITY A point or respect in which things differ
PUNNETT SQUARES in genetics, a type of grid used to show the gametes of each parent and their possible offspring
NUCLEUS a specialized, usually spherical mass of protoplasm encased in a double membrane, and found in most living eukaryotic cells
DNA deoxyribonucleic acid,an extremely long macromolecule that is the main component of chromosomes and is the material that transfers genetic characteristics in all life forms
CHROMOSOMES A threadlike linear strand of DNA and associated proteins in the nucleus of eukaryotic cells that carries the genes and functions in the transmission of hereditary information Humans have 23 pairs
Created by: lauren_kennedy