Across
- 4. all the offspring that are at the same stage of descent from a common ancestor
- 5. a unit of genetic material that determines a trait
- 7. the young of a person, animal or plant
- 8. the passing of traits from parents to offspring
Down
- 1. the different forms of a gene
- 2. a threadlike strand of coiled dna in the nucleus that controls cell activity
- 3. the study of heredity
- 6. to receive from one´s parents, such as a trait