Across
- 4. first step of the scientific method
- 5. a pair of chromosomes made of the same alleles
- 7. what a scientist manipulates in an experiment (2 words)
- 10. molecule made up of amino acids
- 11. an organism’s appearance
- 12. an observation that uses our 5 senses
- 13. an allele that will not be expressed unless it is homozygous
Down
- 1. formed when an egg is fertilized by a sperm
- 2. when the structure of DNA is changed (e.g. by radiation)
- 3. where plants use sunlight, C02 and water to make food
- 6. an observation that uses numbers
- 8. graphic used to predict the results of a genetic cross (2 words)
- 9. a method for predicting a genetic cross