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Unit: Heredity

TermDefinition
DNA A molecule that is present in all living cells and contains the information that determines the traits that a living thing inherits
Chromosomes The main ring of DNA
Cell Cycle The life cycle of a cell
Interphase The period of the cell cycle during which activates such as cell growth and protein synthesis occur without visible signs of cell division
Mitosis A process of the cell cycle that forms two nuclei
Cytokinesis Division of a cytoplasm
Homologous Chromosomes Chromosomes that have the same sequence of genes
Meiosis A process in cell division during which the number of chromosomes decreases to half the original number
Asexual Reproduction Reproduction that does not involve the union of sex cells
Sexual Reproduction Reproduction in which the sex cells from the two parents unite
Fertilization A male and female gamete that form a zygote
Heredity The passing of genetic material from parent to offspring
Gene Instructions for inherited trait
Allele An alternative form of a gene that governs a characteristic
Genotype The genetic make up of all organisms
Phenotype An organism's appearance
Dominant An allele that is fully expressed
Recessive A masked Allele
Incomplete Two Alleles are expressed
Dominance
Codominance Two alleles are expressed
Punnett Square A graph showing genetic cross
Probability An event that will probably occure
Ratio A comparison of two numbers through division
Pedigree A family tree
Created by: punisher