Across
- 4. A trait that is expressed when at least one dominant allele is present.
- 6. The passing of traits from parents to offspring through genetic information.
- 11. The sequence of nucleotides (A, T, C, G) in DNA that determines the traits of an organism.
- 13. A trait that is expressed only when two recessive alleles are present.
- 15. Different forms of the same gene; can be dominant or recessive.
- 16. A thread-like structure made of DNA and proteins that carries genes; found in the nucleus of most cells.
Down
- 1. The organelle in a cell that contains the chromosomes and controls cellular activities.
- 2. The genetic makeup of an organism (e.g., AA, Aa, or aa).
- 3. A segment of DNA that contains the instructions for making a specific protein, which determines traits.
- 5. A characteristic or feature of an organism, such as eye color or height, that is determined by genes.
- 7. The molecule that carries genetic information in all living organisms.
- 8. The process by which genetic information is passed from parents to offspring.
- 9. A change in the DNA sequence that can result in a different trait.
- 10. The basic unit of life, where DNA and chromosomes are located.
- 12. Any living thing that inherits traits from its parents.
- 14. The physical expression of traits based on the genotype.
