Across
- 3. new nuclei form around each set of chromosomes
- 5. copying part of DNA to make mRNA
- 9. pairs with adenine
- 13. pairs with thymine
- 14. chromosomes become visible
- 15. makes up the sugar-phosphate backbone in DNA
- 17. the process of transcription and translation
- 18. bases carry information for specific traits
- 21. single units that make up DNA
- 23. the cross between two homozygous organisms, resulting in the opposite phenotype
- 24. structure of DNA
- 26. the presence of two different alleles
- 27. using mRNA to build an amino acid protein chain
Down
- 1. portion of the DNA backbone that provides structural support
- 2. the relationship between two versions of a gene
- 4. a cell spends the most time in this phase
- 6. a trait that is expressed only when a genotype is homozygous
- 7. nuclear cell division
- 8. a property of double-stranded nucleic acids
- 10. chromosomes line up along the middle
- 11. pairs with guanine
- 12. pairs with cytosine
- 13. chromatids are pulled to opposite poles of the cell
- 16. the presence of two identical alleles
- 19. cell growth
- 20. the cross between two organisms that are identical for two traits
- 22. division of cytoplasm
- 24. contains code for every protein
- 25. a random change in a sequence of gene