Across
- 4. is a three-nucleotide sequence on tRNA complementary to an mRNA codon.
- 6. is a change in the nucleotide sequence of DNA.
- 7. if any, are part of the active site.
- 9. carries genetic information from DNA to ribosomes.
- 10. is an interaction that takes place at a position other than the active site but affects the active site either positively or negatively.
- 12. is the synthesis of RNA from a DNA template.
- 13. are compounds that slow enzyme action
- 15. is an important secondary messenger.
- 17. transports amino acids to the ribosome during protein synthesis.
- 19. the compound whose reaction is catalyzed by an enzyme
- 20. are also known as chemical messengers that interact with receptors.
Down
- 1. is the main neurotransmitter
- 2. is a sequence of three nucleotides in mRNA that specifies an amino acid
- 3. are where genes are located
- 5. is the process by which ribosomes synthesize proteins using mRNA instructions.
- 8. is the process by which DNA makes an identical copy of itself.
- 11. are macromolecules that catalyze chemical reactions in the body.
- 14. are protein molecules embedded in the membranes of cells.
- 16. catalyze the addition of two groups to a double bond or the removal of two groups from adjacent atoms to create a double bond.
- 18. forms the structural and catalytic components of ribosomes