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🧬Vocab
Biology, Ch. 4
| Question | Answer |
|---|---|
| The process of change in the frequency of an allele in a population over time | Genetic Drift |
| The MOVEMENT & EXCHANGE of GENE or alleles from one population of species to another | Gene Flow |
| MATING that has not occurred due to CHANCE, & therefore has had human interference | Non-Random Mating |
| Physical features found in different organisms that share a common ancestor | Homologous Structure |
| The process by which heritable traits increase an organism's chances of SURVIVAL & reproduction | Natural Selection |
| Genetic makeup of an individual is cell or organisms that determines or contribute to its PHENOTYPE | Genotype |
| Observable & measurable characteristics of an organism | Phenotype |
| Variant of a gene | Allele |
| The fundamental, physical, & functional unit of heredity | Genes |
| Having 2 different alleles for a particular trait | Heterozygous |
| With the same or identical alleles for a particular trait located at similar loci on paired chromosomes | Homozygous |
| Having primary CONTROL, as in genetics, a DOMINANT allele that masks the effects of the other allele | Dominant |
| Of, or pertaining to, a gene whose phenotypic expression is MASKED BY a dominant gene | Recessive |
| The modified expression of a gene by an unrelated gene | Epistasis |
| A phenomenon responsible for variation in different life forms leading to enhanced & better reforms through the genetics used by humans | Incomplete Dominance |
| Alleles of a gene pair in a heterozygote are fully expressed | Codominance |
| Series of 3 or MORE ALLELES for a gene | Multiple Alleles |
| The kind of inheritance in which the trait is produced from the cumulative effects of many genes | Polygenic Inheritance |
| Traits controlled by its presence on the SEX CHROMOSOMES | Sex-Linked Traits |
| A heterozygous individual BEARING an unexpressed defective gene | Carrier |
| CHANGES in the DNA sequence that can lead to various effects | Gene Mutations |
| A MUTATION involving a long segment of DNA or CHROMOSOMES | Chromosomal Mutations |
| Not aggressive or posing any serious threat especially to health | Benign |
| Cells or tumors that are cancerous & exhibit aggressive behavior | Malignant |
| The transfer of disease from one organ or part to another not directly connected to it | Metastasize |