Across
- 4. they are composed of carbon, oxygen, hydrogen, nitrogen, and phosphorus atoms.
- 5. transfer of information from DNA's base sequence on the complementary base sequence.
- 9. cubelike structure, building block of all living things.
- 10. as a cell division begins, the chromatin threads coil and shorten.
- 13. amino acids to protein synthesis sites, amino acids must be able to recognize when the mRNA is "calling for them.
- 14. loose network of bumpy threads scattered throughout the nucleus.
- 17. round bodies within the nucleus that are small and dark staining.
- 18. branch of biology concerned with study genes.
- 21. biological catalysts that regulate chemical reactions in the cells.
- 23. where genes are contained, control center.
- 25. genetic material found within the cell nucleus.
- 26. located outside of the nucleus and can be. considered the "molecular slave".
- 27. three main regions or parts nucleus, cytoplasm, and plasma membrane.
- 28. cytoplasmic organelles at which proteins are synthesized.
- 29. chromosomes at the opposite ends of the cell uncoil to become threadlike chromatin again, prophase in reverse.
- 31. division of the nucleus.
Down
- 1. division of cytoplasm.
- 2. help form ribosomes, where proteins are built.
- 3. _____ accumulates, and ATP supplies are replenished by oxidation of food fuels.
- 6. nucleus is bound by double membrane barrier.
- 7. centromeres that held the chromatid together split.
- 8. the language of nucleic acid is translated into the language of proteins.
- 11. three-base sequence on mRNA.
- 12. the assembly is done by the centrioles separating from each other and moving toward the opposite sides of the cell.
- 15. small cloverleaf-shaped molecules.
- 16. enzyme where the substrate binds.
- 19. short stage, chromosome cluster and become aligned at the center of the spindle midway.
- 20. DNA segments that carry out the information for building on protein or polypeptide.
- 22. long single nucleotide strands that resemble half of a DNA molecule and carry a message containing instructions for protein synthesis.
- 24. chromatin that threads and coils and condenses into dense and rodlike.
- 30. provides a form of chemical energy that is usable by all body cells.
