D1.2

2. The organelle in the cytoplasm where translation takes place.
4. The process where a ribosome decodes mRNA to assemble a sequence of amino acids.
7. The nitrogenous base found in RNA that replaces thymine.
8. The building block of proteins linked together by peptide bonds.
9. A three-base sequence on mRNA that codes for a specific amino acid.
12. The enzyme that separates DNA strands and joins RNA nucleotides together.
13. A long chain of amino acids that folds into a functional protein.
14. The type of covalent bond formed between amino acids during translation.
15. The five-carbon sugar found in the backbone of RNA nucleotides.
19. The process where a DNA sequence is copied into a complementary mRNA strand.
20. The organelle where transcription occurs in eukaryotic cells.

1. A change in a single base pair in DNA that can alter one amino acid.
3. Messenger RNA, the molecule that carries genetic code from nucleus to ribosome.
5. A three-base sequence on tRNA that is complementary to an mRNA codon.
6. The universal set of rules relating codons to specific amino acids.
10. The property where multiple codons can code for the same amino acid.
11. The mRNA sequence that signals the end of protein synthesis.
16. The specific mRNA sequence (AUG) that initiates the translation process.
17. The property of the genetic code being the same across almost all organisms.
18. Transfer RNA, the molecule that brings specific amino acids to the ribosome.