Chapter 8- Molecular Genetics

5. Within the ribosomes; binds a tRNA with an attached amino acid
7. The monomers that combine to form a polypeptide
9. An operon required for the transport and metabolism of lactose in E. coli.
10. Within the ribosomes; contains the tRNA that no longer has an attached amino acid
11. An enzyme that builds a short RNA primer on the lagging strand during DNA replication
12. An alternative form of a gene
14. Point mutation which codes for a different amino acid
17. Transcription factor that helps position RNA polymerase at the start of a gene
18. Within the ribosome; contains the tRNA with the growing polypeptide chain attached
19. Large changes in chromosome structure
23. The process by which introns are removed from pre-mRNA
24. Non-membrane bound organelle; site of protein synthesis
28. The region of a gene that contains the code for producing a protein
29. A condition caused by mutations in one or more genes
31. A segment of DNA that allows a gene to be transcribed
32. a sequence of three nucleotides within mRNA
33. mutations which alter the mRNA reading frame
36. Mutation in the DNA within a gamete
37. Long region of DNA that has no identified function
38. Monomer of nucleic acid intermediate between the nucleus and the ribosomes

1. Messenger RNA
2. The frame of three bases (codon) in which the mRNA is translated
3. The complete set of unique alleles in a species or population
4. A virus that infects bacteria
6. Complex needed to start transcription in eukaryotes
8. A region of prokaryotic DNA where a repressors binds
13. The code in which the language of the nucleotides is used to create the language of amino acids
15. Chromosomal alteration reversing the orientation of a chromosomal segment
16. Deoxyribonucleic acid, the genetic material
20. The enzyme that transcribes the DNA to make RNA
21. Mutation that results in a gene product or protein having less or no function
22. A region of prokaryotic DNA with a promoter, an operator, and one or more genes that encode proteins needed to preform a certain task
25. A 3 base sequence on the tRNA that base pairs with the codon on the mRNA
26. Genes that function in patterning the body, providing the placement of certain body parts during development
27. Protein that enhances the interaction between RNA polymerase and a particular promoter
29. Gene that controls the shape of a developing zygote early in its development
30. A mutatiobn due to the loss of a purine base
34. A three base sequence on the tRNA that base pairs with the codon on the mRNA
35. Newly transcribed eukaryotic mRNA; not yet ready for translation
36. A segment of DNA that contains the information necessary to encode an RNA molecular or a protein