Across
- 3. unit of heredity
- 4. the offspring resulting from combining the qualities of two organisms of different breeds, varieties, species or genera through sexual reproduction
- 7. one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome
- 8. the genetic constitution of an individual organism
- 9. an individual having two identical alleles of a particular gene or genes and so breeding true for the corresponding characteristic
Down
- 1. an allele of a gene is said to be _____ when its effects are masked by the other allele
- 2. an allele of a gene is said to be _______ when it effectively overrules the other allele
- 5. the observable characteristics in an individual resulting from the expression of genes
- 6. an individual having two different alleles of a particular gene or genes, and so giving rise to varying offspring