answers
In 1944, ____ showed that DNA was the basis for genes Ans✓✓-Oswald Avery
The heart of the discipline of molecular biology consists of understanding the
mechanisms of ____ within cells. Ans✓✓-information exchange
Why is carbon important? Ans✓✓-4 bonds allow for diversity
What are the precursors? Ans✓✓-H20
CO2
NH4 (ammonium)
NO3 (nitrate)
N2
Macromolecules are held together by ___ and ___. Ans✓✓-covalent bonds and
weak forces
In DNA, most information is transferred through the ___ groove. Ans✓✓-major
groove
What is the function of DNA polymerase? Ans✓✓-copies DNA (replication)
What is the function of RNA polymerase Ans✓✓-DNA ---> mRNA in transcription
, Cell-Cell adhesion is through... Ans✓✓-adherens junctions
Cell-Extracellular matrix adhesion is through... Ans✓✓-focal adhesion
Mature mRNA does not contain any... Ans✓✓-introns
What does PCR do? Ans✓✓-make millions of copies of DNA
How do you target a specific gene during PCR? Ans✓✓-you design PCR primers
and then amplify them in a thermocycler
What step comes after PCR? Ans✓✓-gel electrophoresis
What is the purpose of miniprep? Ans✓✓-it can lyse bacteria and provide you
with micrograms of DNA, so it is used to purify DNA
What is the true beginning of molecular biology? Ans✓✓-the discovery of the
structure of DNA by Watson and Crick in 1953
Molecular biology is the study of... Ans✓✓-DNA and proteins and their
interactions, and the molecular information transfer within a cell
describe recombinant DNA technology Ans✓✓-the process of taking a gene from
one source and joining it with another piece of DNA and inserting that DNA into
bacteria for further study and manipulation