DNA—The Genetic Material (Ava) Questions with complete solution

DNA—The Genetic Material (Ava)
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1. Summarize the Griflth showed that bacteria could be the transfer of
experiments of Griffith genetic ma- terial; Avery showed that DNA was the
and Avery that in-
transforming factor. `
dicated that DNA is the
ge- netic material.

2. Describe the data
Franklin's photo 51 showed a helix shape. Her
used by Watson and
Crick to deter- mine the mathematical data showed distanced between the strands.
structure of DNA Chagratt's data suggested how bases pair (A = T, C =
G).

3. Draw and label a segment of see image; Should show C-G and A-T base pairings
and antiparallel
DNA showing its Helix and orientation of the base strands.
complimentary base
pairing.


DNA coils around histones to form nucleosomes, which
4. describe the structure of group together to form chromatin fibers, which supercoil
eu- karyotic to make the chromosomes.
chromosomes.




5. describe the 2 characteristics DNA must code for proteins and be able to
replicate.
that DNA needs to
fulfill its role as a
genetic material.

6. Evaluate Hershey and use radioac- tive phosphorous and
Chas- es' decision to sulfur for their experiments. Could
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