Genetics
Across
- 4. The physical appearance of a living thing.
- 5. A physical characteristic like hair color, freckles or dimples
- 7. The trait that expresses itself more strongly when 2 genes are present.
- 10. Two different alleles for a trait (Tt).
- 12. Two copies of the same allele (TT).
- 13. A section of DNA where instructions for one trait are kept.
- 14. The term that describes how the sides of DNA are aligned opposite each other
- 16. The cell organelle that holds the chromosomes
- 17. Stands for deoxyribose nucleic acid
Down
- 1. The base that pairs with Cytosine
- 2. The name of the sugar in DNA
- 3. X-shaped molecules made of DNA that hold genes.
- 6. The base that pairs with Guanine
- 8. The base that pairs with Adenine
- 9. The shape of a DNA molecule
- 11. The trait that is hidden when other traits are preset.
- 13. The field of biology that studies how traits are passed down through generations
- 15. The base that pairs with Thymine