In: Chemistry
1. For this discussion, you are asked to examine the structure
of DNA from your textbook.
2. Using your knowledge or the material covered in Weeks 1 – 12,
your general knowledge of organic chemistry I, your textbooks and
the Internet to answer the following questions regarding the DNA
molecule.
a. Label and give the name for the major
functional groups in the DNA molecule?
b. Functional groups are sites where chemical
reactions take place. Using your knowledge of basic organic
reactions, think about some possible reactions (e.g. SN2, E1, E2,
SN1, etc.) that can occur at each of the functional groups in the
DNA molecule?
c. Label the functional groups in the DNA molecule
as hydrophobic or hydrophilic? Is the overall DNA molecule
generally classified as hydrophobic or hydrophilic? Explain your
prediction.
d. Discuss the type of bonding (e.g. ionic,
covalent, coordinate covalent, hydrogen bonding, polar covalent,
non-polar covalent, etc.) at each functional group within the DNA
molecule
e. Label the hybridization (e.g. sp3, sp2, sp,
etc.) for the central atom within each functional group in the DNA
molecule?
f. Label the bond angle around the central atom in
each major functional group within the DNA molecule?
g. Label the geometry of each central atom for
each central atom in each functional group in the DNA
molecule.
h. Label the major sites in the functional groups
in the DNA molecule as acidic, basic or neutral and then label them
as nucleophilic, electrophilic sites as well.