LSC 347-Genetics UPDATED Questions and CORRECT Answer
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Course
LSC 347-Genetics
Institution
LSC 347-Genetics
LSC 347-Genetics UPDATED Questions
and CORRECT Answers
Griffith (1928) - CORRECT ANSWER- Discovered transformation by observing
harmless R stains turn into S strains ones and give a mouse pneumonia.
Avery, MacLeod, and McCarty (1944) - CORRECT ANSWER- confirmed that DNA=
the transformation ...
LSC 347-Genetics UPDATED Questions
and CORRECT Answers
Griffith (1928) - CORRECT ANSWER- ✔✔Discovered transformation by observing
harmless R stains turn into S strains ones and give a mouse pneumonia.
Avery, MacLeod, and McCarty (1944) - CORRECT ANSWER- ✔✔confirmed that DNA=
the transformation factor from Griffith's experiments
Hershey and Chase (1952) - CORRECT ANSWER- ✔✔concluded that the genetic material
of the bacteriophage was DNA, not protein.
Chargaff's Rule - CORRECT ANSWER- ✔✔[A]=[T] and [G]=[C], they pair up across from
one another forming two strands also called base pairing.
Nucleic Acid Electrophoresis - CORRECT ANSWER- ✔✔separates DNA and RNA
fragments by size such that smaller fragments migrate through a gel at a faster rate than large
fragments
Absorption of UV light by Nucleic Acids - CORRECT ANSWER- ✔✔Critical to isolation of
nucleic acids following separation, used in localization, isolation, and characterization
Denaturation and Renaturation of Nucleic Acid - CORRECT ANSWER- ✔✔used to
determine melting temperature
Molecular Hybridization - CORRECT ANSWER- ✔✔Technique used to identify specific
DNAs in complex mixtures such as libraries. Denaturation and renaturation of of nucleic
acids is the basis.
Fluorescent in situ hybridization (FISH) - CORRECT ANSWER- ✔✔Fluorescent DNA or
RNA probes stain the microorganisms being targeted
Determines the identity, abundance, and relative activity of microorganisms in an
environment
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