Biology Chapter 12
Order by
21 terms
Terms | Definitions |
|---|---|
 F1 Generation | Offspring produced by crossing 2 true-breeding strains |
| F2 Generation | Offspring resulting from the self-fertilization of F1 plants |
| dominant | the form of each trait expressed in F1 plants |
| recessive | the form of the trait not seen in the F1 plants |
| 3/4 | The ratio of plants that will express the dominant form in F2 plants |
| 1/4 | The ratio of plants that will express the recessive form in F2 plants |
| 3 to 1 | The dominant to recessive ratio in monohybrid crosses |
| homozygous | having two of the same allele |
| heterozygous | having two different alleles |
| gene | information for a trait passed from parent to offspring |
| alleles | alternate forms of a gene |
| genotype | total set of alleles of an individual |
| phenotype | outward appearance of an individual |
| principle of segregation | two alleles for a gene segregate during gamete formation and are rejoined at random, on from each parent, during fertilization |
| pedigree analysis | This is used to track inheritance patterns in families |
| dihybrid cross | examination of 2 separate traits in a single cross |
| principle of independent assortment | in a dihybrid cross, the alleles of each gene assort independently |
| rule of multiplication | the probability of 2 independent events occurring simultaneously is the PRODUCT of their individual probabilities |
| testcross | a cross used to determine the genotype of an individual with dominant phenotype |
| incomplete dominance | the heterozygote is intermediate in phenotype between the two homozygotes |
| codominance | the heterozygote shows some aspect of the phenotypes of both homozygotes |
First Time Here?
Welcome to Quizlet, a fun, free place to study. Try these flashcards, find others to study, or make your own.