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Genotype vocabulary
Teaching Of Science (SEC 395)
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Study Guide
Multiple choice, Vocab Matching
Vocab: Heredity: The passing of traits from parents to offspring Genetics: The study of how traits are inherited through the action of alleles. Chromosomes: determine what traits a living thing has Genes: parts of a chromosome that control inherited traits. 23 chromosomes from mother, 23 chromosomes from father = 2 copies of each gene. Alleles: The different forms of a trait that a gene may have Dominant: A gene that always shows itself. Represented by a capital letter Recessive: A gene that is hidden or masked when the dominant gene is present. Represented by a lowercase letter Purebred: Having two like genes Hybrids: Having two unlike genes Homozygous: An organism with two alleles that are the same Heterozygous: An organism with two alleles that are different Phenotype: The way an organism looks, physical appearance as a result of the genotype Ex. brown hair, blue eyes, dark skin Genotype: genetic make-up, Ex. TT, Tt, or tt Punnett Square: Chart that shows possible gene combinations of offspring dominant and recessive? Dominant: A gene that always shows itself. Represented by a capital letter, Ex. AA or Aa
Recessive: A gene that is hidden or masked when the dominant gene is present. Represented by a lowercase letter, Ex. aa
genotype and phenotype? Genotype: genetic make-up, Ex. TT, Tt, or tt Phenotype: The way an organism looks, physical appearance as a result of the genotype Ex. brown hair, blue eyes, dark skin
homozygous and heterozygous? Homozygous: An organism with two alleles that are the same, Ex. AA or aa Heterozygous: An organism with two alleles that are different, Ex. Aa
Genotype vocabulary
Course: Teaching Of Science (SEC 395)
University: Pennsylvania Western University, California
