www.eduvee.com Key terms for AP Biology. This covers the terms for Chapter 14 from Campbell Biology - Mendel & Heredity. Find more study resources and revision tools with questions at www.eduvee.com. It's FREE!
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| 116286464 | genetics | the branch of biology that deals with the transmission and variation of inherited characteristics, in particular chromosomes and DNA | 0 | |
| 116286465 | genotype | the specific genetic information of a cell or organism, usually a description of the allele or alleles relating to a specific gene. | 1 | |
| 116286466 | true-breeding plant | a plant that always produces offspring of the same phenotype when self-fertilized. | 2 | |
| 116286467 | phenotype | the observable characteristics of an organism, often resulting from its genetic information or a combination of genetic information and environmental factors | 3 | |
| 116286468 | filial | of a generation or generations descending from a specific previous one | 4 | |
| 116286469 | parental | of the generation of organisms that produce a hybrid | 5 | |
| 116286470 | dominant | a relationship between alleles of a gene, in which one allele masks the expression (phenotype) of another allele at the same locus | 6 | |
| 116286471 | recessive | able to be covered up by a dominant trait | 7 | |
| 116286472 | hybrid | offspring resulting from cross-breeding different entities, e.g. two different species or two purebred parent strains | 8 | |
| 116286473 | probability | a number, between 0 and 1, expressing the precise likelihood of an event happening | 9 | |
| 116286474 | product rule | the probability of two independent events occurring together can be calculated by multiplying the individual probabilities of each event occurring alone | 10 | |
| 116286475 | sum rule | the probability of the occurrence of one event or the other event, of two mutually exclusive events, is the sum of their individual probabilities | 11 | |
| 116286476 | phenotype | the appearance of an organism based on a multifactorial combination of genetic traits and environmental factors, especially used in pedigrees | 12 | |
| 116286478 | genotype | the combination of alleles, situated on corresponding chromosomes, that determines a specific trait of an individual, such as "Aa" or "aa" | 13 | |
| 116286479 | Punnett square | a graphical representation used to determine the probability of an offspring expressing a particular genotype | 14 | |
| 116286480 | monohybrid | a hybrid between two species that only have a difference of one gene | 15 | |
| 116286481 | homozygous | of an organism in which both copies of a given gene have the same allele | 16 | |
| 116286482 | heterozygous | of an organism which has two different alleles of a given gene | 17 | |
| 116286484 | allele | one of a number of alternative forms of the same gene occupying a given position on a chromosome | 18 | |
| 116286485 | incomplete dominance | a condition in which the phenotype of the heterozygous genotype is distinct from and often intermediate to the phenotypes of the homozygous genotypes | 19 | |
| 116286486 | codominance | a condition in which both alleles of a gene pair in a heterozygote are fully expressed, with neither one being dominant or recessive to the other | 20 | |
| 116286487 | X-linked | associated with the X chromosome | 21 | |
| 116286488 | hemizygous | having some single copies of genes in an otherwise diploid cell or organism | 22 | |
| 116286489 | carrier | a person or animal that transmits a disease to others without itself contracting the disease | 23 | |
| 116286490 | mutation | any heritable change of the base-pair sequence of genetic material | 24 | |
| 116286492 | recessive lethal | an inheritance pattern in which an allele is only lethal in the homozygous form and in which the heterozygote may be normal or have some altered non-lethal phenotype | 25 | |
| 116286493 | dominant lethal | an inheritance pattern is one in which an allele is lethal both in the homozygote and the heterozygote; this allele can only be transmitted if the lethality phenotype occurs after reproductive age | 26 | |
| 116286494 | gene | a unit of heredity; the functional units of chromosomes that determine specific characteristics by coding for specific proteins | 27 | |
| 116286495 | chromosome | a structure in the cell nucleus that contains DNA, histone protein, and other structural proteins | 28 | |
| 116286496 | genetics | the branch of biology that deals with the transmission and variation of inherited characteristics, in particular chromosomes and DNA | 29 | |
| 116286497 | dominant | a relationship between alleles of a gene, in which one allele masks the expression (phenotype) of another allele at the same locus | 30 | |
| 116286498 | recessive | able to be covered up by a dominant trait | 31 | |
| 116286499 | law of segregation | a diploid individual possesses a pair of alleles for any particular trait and each parent passes one of these randomly to its offspring | 32 | |
| 116286500 | independent assortment | separate genes for separate traits are passed independently of one another from parents to offspring | 33 | |
| 116286501 | linkage | the property of genes of being inherited together | 34 | |
| 116286502 | recombination | the formation of genetic combinations in offspring that are not present in the parents | 35 | |
| 116286504 | epistasis | the modification of the expression of a gene by another unrelated one | 36 |
