"DNA, RNA, and Protein Synthesis": HTML5 Crossword

Across

5. the organic process whereby the DNA sequence in a gene is copied into mRNA (13)
6. a Y-shaped point that results when the two strands of a DNA helix separate so that the DNA molecule can be replicated (11,4)
9. the formation of proteins by using information contained in DNA and carried by mRNA (7,9)
11. process in which one strain of bacteria is changed by a gene or genes from another strain of bacteria (14)
14. an organic base that contains nitrogen, such as a purine or pyrimidine; a subunit of a nucleotide in DNA and RNA (11,4)
18. monomer of nucleic acids made up of a 5-carbon sugar, a phosphate group, and a nitrogenous base (10)
19. an enzyme that catalyzes the elongation of new DNA at a replication fork by the addition of nucleotides to the existing chain (3,10)
20. five-carbon sugar that is a component of DNA nucleotides (11)

Down

1. the process whereby genetic information coded in messenger RNA directs the formation of a specific protein at a ribosome in the cytoplasm (11)
2. disease-causing strain of a bacterium (8)
3. a nitrogenous base that has a single-ring structure; one of the two general categories of nitrogeous bases found in DNA and RNA; thymine, cytosine, or uracil (10)
4. the sequence of bases on one strand determines the sequence of bases on the other strand (13,4,5)
7. process by which DNA is copied in a cell before a cell divides by mitosis, meiosis, or binary fission (3,11)
8. the order of nitrogenous bases on a chain of DNA (4,8)
10. viruses that infect bacteria (14)
12. a nitrogenous base that has a double-ring structure; one of the two general categories of nitrogenous bases found in DNA and RNA; either adenine or guanine (6)
13. (RNA) single-stranded nucleic acid that contains the sugar ribose (11,4)
15. change in a DNA sequence that affects genetic information (8)
16. an enzyme that untwists the double helix of DNA at the replication forks (8)
17. a 5-carbon sugar important as a component of ribonucleic acid (6)