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2015 BIO FINAL
GENETICS
| Term | Definition |
|---|---|
| DIPLOID | containing two complete sets of chromosomes, one from each parent |
| HAPLOID | having a single set of unpaired chromosomes |
| 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 |
| MENDEL | FATHER OF GENETICS |
| LAW OF DOMINANCE | 2 FACTORS, ONE FOR EACH OPPOSING TRAIT, ONE DOM ONE REC |
| 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) |
| LAW OF INDEPENDENT ASSORTMENT | DURING GAMETE FORMATION ALL ALLELES FOR MULTIPLE CHARACTERISTICS UNDERGO THIS |
| PUREBREAD | bred from parents of the same breed or variety |
| HYBRID | the offspring of two plants or animals of different species or varieties, such as a mule |
| HETEROZYGOUS | TWO DIFFERENT ALLELES FOR A TRAIT (Aa) |
| HOMOZYGOUS | TWO IDENTICAL ALLELES FOR A TRAIT (AA/aa) |
| MONOHYBRID CROSS | CROSS FOCUSING ON ONE TRAIT (COLOR) |
| DIHYBRID CROSS | CROSS FOCUSING ON TWO DIFFERENT TRAITS (COLOR AND HEIGHT) |
| MUTATIONS | CHANGE THE SEQUENCE OF DNA THAT CAN BE PASSED DOWN THEREFORE CAUSING DISEASES AND ALLOWING EVOLUTION TO HAPPEN |
| GENE | a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring |
| MENDEL'S SUCCESS | BROUGHT EXPERIMENTAL AND QUANTITATIVE APPROACH TO GENETICS |
| 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 |
| PHENOTYPE | DESCRIPTION OF AN ORGANISMS APPEARANCE |
| GENOTYPE | DESCRIPTION OF AN ORGANISMS GENETIC MAKEUP |
| RATIOS AND CROSSES | 3:1 FOR MONOHYBRID CROSS, 9:3:3:1 FOR DYHYBRID CROSS |
| 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 |
| PUNNETT SQUARE | a diagram that is used to predict an outcome of a particular cross or breeding experiment |
| PRODUCT RULE | used to find the derivative of a function |
| INFLUENCE OF ENVIRONMENT ON GENE EXPRESSION | PHENOTYPE DEPENDS ON ENVIRONMENT AND GENES; BIOTIC AND ABIOTIC FACTORS |
| SEX CHROMOSOME | a chromosome involved with determining the sex of an organism, typically one of two kinds; GAMETE AND SPERM |
| SEX DETERMINATION | WHETHER AN ORGANISM HAS GAMETES OR SPERM |
| TEST CROSS | a way to explore the genotpye of an organism, CROSSING IT WITH A HOMOZYGOUS RECESSIVE ORGANISM |