Across
- 3. does not require air
- 6. different forms of a gene
- 9. releases energy from food molecules in the absence of oxygen
- 11. one animal captures and feeds on another
- 12. saclike photosynthetic membranes
- 14. average weather conditions over long periods of time
Down
- 1. physical trait
- 2. offspring of crosses between parents with different traits
- 3. chromosomes separate and move along spindle fibers to opposite ends of the cell
- 4. genetic information bundled into packages of DNA
- 5. full set of genetic information that an organism carries in its DNA
- 7. organisms that have two different alleles for the same gene
- 8. Franklin's x-ray photography
- 10. decoding of an mRNA message into a protein
- 13. programmed cell death
- 14. three letter word in mRNA