biology

2. a microscopic single-celled organism that has neither a distinct nucleus with a membrane nor other specialized organelles
3. a minute particle consisting of RNA
4. relating to the body
7. a unit of heredity which is transferred from a parent to offspring
10. molecules that combine to form proteins.
11. a compound which is one of the four constituent bases of nucleic acids.
16. a sugar derived from ribose by replacing a hydroxyl group with hydrogen.
19. a mature haploid male or female germ cell
20. an organism consisting of a cell or cells in which the genetic material is DNA in the form of chromosomes contained within a distinct nucleus
21. relating to or denoting chemical bonds formed by the sharing of electrons between atoms.
23. a substance that is insoluble in water and soluble in alcohol
24. a compound that occurs in guano and fish scales

1. an intermolecular force
5. one of four chemical bases in DNA
6. a sequence of three nucleotides which together form a unit of genetic code in a DNA or RNA molecule.
8. a nucleotide
9. having a single set of unpaired chromosomes.
12. a sugar of the pentose class which occurs widely in nature as a constituent of nucleosides and several vitamins and enzymes.
13. description of the structure of a DNA molecule.
14. a salt or ester of phosphoric acid
15. a compound which is one of the four constituent bases of nucleic acids
16. containing two complete sets of chromosomes
17. a biological catalyst
18. any of a class of nitrogenous organic compound
22. the basic building block of nucleic acids