DNA and GENETICS

6. a nitrogen containing molecule that has the same chemical properties as a base
7. replaced by a nucleobase uracil in RNA
9. a pair of parallel helices intertwined about a common axis; most times in the DNA molecule
11. a sphere shaped structure within the cytoplasm of a cell that is composed of RNA and protein
12. the process of producing an exact copy of a nucleotide strand such as DNA
15. a compound that occurs in guano and fish scales
16. a complex organic substance present in living cells; linked in a long chain
17. a virus which parasitizes a bacterium
19. a base unit consisting of two nucleobases bound to each other by hydrogen bounds

1. the process by which one figure, expression, or function is converted into something else
2. is an enzyme that synthesis DNA molecules from deoxyribonucleotides
3. a compound found in living tissues as a constituent base of nucleic acids
4. forms the structural framework of nucleic acids
5. it facilitates full replication of the chromosome
8. a purine derivative; paired with thymine
10. forms the basic structural unit of nucleic acids such as DNA
13. it's the large membrane bounded organelle that contains genetic material
14. the powerhouse of the cell
18. a sequence of nucleotides in DNA or RNA that codes for a molecule that has a function