Across
- 2. the process where a cell makes an exact copy of its DNA, ensuring each new daughter cell has a complete set of genetic information
- 3. a compound that occurs in guano and fish scales, and is one of the four constituent bases of nucleic acids. A purine derivative, it is paired with cytosine in double-stranded DNA.
- 6. a sugar derived from ribose by replacing a hydroxyl group with hydrogen.
- 7. Bonds a type of strong dipole-dipole attraction that occurs between a hydrogen atom covalently bonded to a very electronegative atom
- 11. a compound found in living tissue as a constituent base of RNA. In DNA its place is taken by thymine.
- 12. the central and most important part of an object, movement, or group, forming the basis for its activity and growth.
Down
- 1. They bind messenger RNA and transfer RNA to synthesize polypeptides and proteins.
- 2. a pair of parallel helices intertwined about a common axis, especially that in the structure of the DNA molecule.
- 4. a compound consisting of a nucleoside linked to a phosphate group. Nucleotides form the basic structural unit of nucleic acids such as DNA.
- 5. nitrogen-containing organic compounds that are essential building blocks of nucleic acids like DNA and RNA
- 6. the molecule that carries genetic information for the development and functioning of an organism
- 8. a nucleic acid present in all living cells that has structural similarities to DNA
- 9. a unit of heredity which is transferred from a parent to offspring and is held to determine some characteristic of the offspring.
- 10. a compound which is one of the four constituent bases of nucleic acids. A pyrimidine derivative, it is paired with adenine in double-stranded DNA.