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GENETICS

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Term
Definition
DIPLOID   containing two complete sets of chromosomes, one from each parent  
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HAPLOID   having a single set of unpaired chromosomes  
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HOMOLOGOUS CHROMOSOMES   chromosomes of the same size and similar structure, have the same genes as each other in the same sequence but do not necessarily have the same allele of those genes  
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MENDEL   FATHER OF GENETICS  
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LAW OF DOMINANCE   2 FACTORS, ONE FOR EACH OPPOSING TRAIT, ONE DOM ONE REC  
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LAW OF SEGREGATION   THE TWO FACTORS SEPARATE AT RANDO DURING GAMETOGENESIS (FORMATION OF GAMETE AND SPERM) (REUNITE AT RANDO AT FERTILIZATION TO FORM A ZYGOTE)  
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LAW OF INDEPENDENT ASSORTMENT   DURING GAMETE FORMATION ALL ALLELES FOR MULTIPLE CHARACTERISTICS UNDERGO THIS  
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PUREBREAD   bred from parents of the same breed or variety  
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HYBRID   the offspring of two plants or animals of different species or varieties, such as a mule  
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HETEROZYGOUS   TWO DIFFERENT ALLELES FOR A TRAIT (Aa)  
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HOMOZYGOUS   TWO IDENTICAL ALLELES FOR A TRAIT (AA/aa)  
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MONOHYBRID CROSS   CROSS FOCUSING ON ONE TRAIT (COLOR)  
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DIHYBRID CROSS   CROSS FOCUSING ON TWO DIFFERENT TRAITS (COLOR AND HEIGHT)  
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MUTATIONS   CHANGE THE SEQUENCE OF DNA THAT CAN BE PASSED DOWN THEREFORE CAUSING DISEASES AND ALLOWING EVOLUTION TO HAPPEN  
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GENE   a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring  
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MENDEL'S SUCCESS   BROUGHT EXPERIMENTAL AND QUANTITATIVE APPROACH TO GENETICS  
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MORGAN&DROSOPHILIA&SEX LINKED GENES   RED EYED MALES AND FEMALES BUT ONLY WHITE EYED MALES-MALE SEX LINKED TRAIT FOR WHITE EYES NOT COMPATABLE WITH FEMALES  
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PHENOTYPE   DESCRIPTION OF AN ORGANISMS APPEARANCE  
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GENOTYPE   DESCRIPTION OF AN ORGANISMS GENETIC MAKEUP  
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RATIOS AND CROSSES   3:1 FOR MONOHYBRID CROSS, 9:3:3:1 FOR DYHYBRID CROSS  
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LAW OF PROBABILITY   a fundamental rule relating marginal probabilities to conditional probabilities, it expresses the total probability of an outcome which can be realized via several distinct events - hence the name  
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PUNNETT SQUARE   a diagram that is used to predict an outcome of a particular cross or breeding experiment  
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PRODUCT RULE   used to find the derivative of a function  
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INFLUENCE OF ENVIRONMENT ON GENE EXPRESSION   PHENOTYPE DEPENDS ON ENVIRONMENT AND GENES; BIOTIC AND ABIOTIC FACTORS  
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SEX CHROMOSOME   a chromosome involved with determining the sex of an organism, typically one of two kinds; GAMETE AND SPERM  
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SEX DETERMINATION   WHETHER AN ORGANISM HAS GAMETES OR SPERM  
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TEST CROSS   a way to explore the genotpye of an organism, CROSSING IT WITH A HOMOZYGOUS RECESSIVE ORGANISM  
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