Across
- 3. the basic unit of heredity carried by chromosomes; codes for proteins which determine the traits of an organism
- 9. the passing of traits from parent to offspring
- 10. model used by biologists to determine the probability of offspring having a particular genotype
- 12. a molecule that contains an organisms' genetic information
- 14. trait that appears in offspring if contributed by both parents
- 15. trait that appears in offspring if it is contributed by a parent with a dominant allele
Down
- 1. observable traits-physical traits
- 2. pair of genes that are both dominant or both recessive
- 4. a random change in an organism's DNA
- 5. Cross fertilization between two parental generation organisms that differ in a single trait
- 6. the range of expression of a trait within a population
- 7. pair of genes that are different, one is dominant and one is recessive
- 8. the study of genes and how they affect the traits of an organism
- 11. offspring that are at the same stage of descent from a common ancestor
- 13. two alleles inherited for a particular gene