Biology crossword

2. a sequence of three nucleotides that together form a unit of genetic code
4. pair of complementary bases in a double-stranded nucleic acid molecule
7. organism that contains genetic material that isnt its
8. the action of copying or reproducing something
15. A pyrimidine derivative, it is paired with adenine in double-stranded DNA.
17. the deliberate modification of the characteristics of an organism by manipulating its genetic material.
19. sequence of nucleotide triplets in a messenger RNA molecule gives rise to a specific sequence of amino acids during synthesis of a polypeptide or protein.
20. is an enzyme that synthesizes short RNA sequences called primers

1. compound found in living tissue as a constituent base of nucleic acids.
3. enzymes enzyme produced chiefly having the property of cleaving DNA
5. a compound that occurs in guano and fish scales,
6. scientific tests or techniques used in connection with the detection of crime.
9. small circular DNA strand in the cytoplasm
10. fruitfly scientist
11. transplantation of normal genes into cells in place of missing or defective ones
12. a sugar derived from ribose by replacing a hydroxyl group with hydrogen.
13. enzyme that brings about ligation of DNA
14. compound that is one of the four constituent bases of nucleic acids.
16. main function is to unpackage an organism's genes
18. genetically identical.