Across
- 1. a self-replicating material that is present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information.
- 4. a unit of heredity which is transferred from a parent to offspring and is held to determine some characteristic of the offspring.
- 5. the study of heredity and the variation of inherited characteristics.
Down
- 2. one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.
- 3. the passing on of physical or mental characteristics genetically from one generation to another.
- 6. a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.