The two strands of the DNA double helix are held together by bonds between base pairs. I DNA replication, each strand of DNA serves as a for a newly synthesized strand of DNA. In gene expression, DNA is used as a template to make , which is then used as a template to make a polypeptide. In the process of , DNA can be rearranged, which contributes to the genetic diversity of the species. What are the differences between the structures of DNA and RNA?
How can the central dogma help us understand the process by which DNA is turned into protein? What are the two steps involved in the process of gene expression?
Why are replication and recombination two important roles of DNA?

The process by which natural forces move weathered rock and soil brim one place to another is called

Match the descriptions / definitions with the term they best describe 1. three dimensional relationship of the different polypeptide chains in a multisubunit protein or protein complex 2. common folding pattern in proteins in which a linear sequence of amino acids folds into a right-handed coil stabilized by internal hydrogen-bonding between polypeptide backbone atoms. 3. the amino acid sequence of a protein 4. a region on the surface of a protein that can interact with another molecule through noncovalent bonding. 5. three-dimensional arrangement of alpha-helices and beta-sheets within a single polypeptide, typically stabilized by a variety of noncovalent bonds, including ionic and hydrogen bonds, and nonpolar interactions / hydrophobic force. 6. the chain of repeating carbon and nitrogen atoms, linked by peptide bonds, in a protein. 7. common structural motif in proteins in which different sections of the polypeptide chain run alongside each other and are joined together by hydrogen bonding between atoms of the polypeptide backbone. 8. portion of a polypeptide chain that has a discrete tertiary structure of its own and can often fold independently of the rest of the chain 9. regular local folding patterns in a protein, including alpha-helix and beta-sheet a. primary structure b. beta-sheet c. protein d. coiled-coil e. polypeptide backbone f. secondary structure g. side chain h. tertiary structure i. binding site j. alpha-helix k. quaternary structure l. protein domain

Write a paragraph at least 5 sentences “why all vaccinations should be mandatory”