Genetics Vocabulary
Across
- 1. the molecule that carries genetic information in all living systems
- 5. chart that shows the inheritance of certain traits through a line of descent
- 7. the basic physical unit of heredity; a section of DNA occupying a specific location on a specific chromosome
- 8. structure in a cell's nucleus that contains hereditary information
- 10. a single step in natural descent; the individuals produced in each successive stage of natural descent
- 11. tool used to predict the probability of certain traits in offspring; a grid that shows the alleles of each parent and the different ways in which those alleles can combine
- 12. early type of animal or plant from which a later one has evolved; a person from whom another is directly descended
- 14. the relationship between two quantities, normally expressed as the quotient of one divided by the other
- 15. the genetic makeup of an organism; the combination of alleles situated on homologous chromosomes that determines a specific trait
- 16. an organism with two different alleles for a single trait; having different alleles for any one gene
- 18. the study of how traits are inherited; the science of heredity
- 20. children or young born of a particular parent or set of parents; descendants
Down
- 2. alternate form of a gene for a single trait; any of the possible forms in which a gene for a specific trait can occur
- 3. Austrian monk and botanist who founded the science of genetics; "The Father of Modern Genetics"
- 4. inheritance pattern in which two different alleles are both fully expressed in a heterozygous individual (ex: red x white = red/white stripes)
- 6. the passing of traits from parent to offspring
- 9. distinguishing characteristic or quality; genetically determined characteristics or conditions
- 11. the likelihood or chance that something will occur; the relative frequency with which an event occurs or is likely to occur
- 13. the outward physical appearance of an organism as a result of its genes; observable physical characteristics of an individual
- 14. a trait which is covered over, or dominated, by another form of that trait and seems to disappear; an allele whose effect is masked by the activity of the second when both are present
- 17. trait that covers over another form of that trait; allele that masks the effect of another when both are present
- 19. an organism with two alleles that are the same for a single trait; having the same allele for any one gene