X ray crystallography Study guides, Revision notes & Summaries
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BIO 143 Exam 2 Questions with Complete Solutions
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The model of DNA structure proposed by Watson & Crick after analysis of Rosalind Franklin's X-ray crystallography data stated that DNA is: Correct Answer-a double stranded helix 
 
DNA polymerase requires a template but not a primer to synthesize a new strand of DNA. Correct Answer-False 
 
Watson & Crick and Franklin also proposed (and we know now that this is true) that the backbone of the DNA molecule is composed of: Correct Answer-sugar + phosphate 
 
Type the letter of the strand that repr...
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Chem 471 Exam 2 Material (ALL SOLVED)
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Nucleoside vs. tide correct answers nucleoside: no phosphate group 
tide: 
 
A vs. B form of helix correct answers (both right handed) 
 
B: 
-predominant form in aq. 
-B can accommodate a spine of water molecules lying in the minor groove (not A): H bonding between h2o and DNA contributes to stability of B form 
-slightly tilted 
 
A: 
-RNA = always A b/c of steric hindrance in B w/ extra hydroxyl group 
-grooves are nearly equal 
-Bases lie farther to the outside and are strongly tilted with r...
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biology 1406 exam 5 questions n answers latest update
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biology 1406 exam 5 questions n answers latest updateIn 1928, __________ was surprised to find that when he 
killed pathogenic bacteria, then mixed the bacterial remains 
with living harmless bacteria, some living bacterial cells 
became pathogenic. - correct answer Frederick Griffith 
 
In 1952, ___________ used bacteriophages to 
show that DNA is the genetic material of T2, a virus that infects the 
bacterium Escherichia coli (E. coli). - correct answer Hershey-Chase 
 
__________ are viruses ...
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biology 1406 exam 5 questions with verified answers
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biology 1406 exam 5 
In 1928, __________ was surprised to find that when he 
killed pathogenic bacteria, then mixed the bacterial remains 
with living harmless bacteria, some living bacterial cells 
became pathogenic. - correct answer Frederick Griffith 
 
In 1952, ___________ used bacteriophages to 
show that DNA is the genetic material of T2, a virus that infects the 
bacterium Escherichia coli (E. coli). - correct answer Hershey-Chase 
 
__________ are viruses that infect bacterial 
cells. - ...
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Bio 150 Final (2024 Latest Update)Correct 100%(Graded A+)
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In an analysis of the nucleotide composition of a double stranded DNA molecule, which of the following will not be found? 
A. C = G 
B. C + G = A + T 
C. A/T = C/G 
D. A - C = T - G - ANSWER B. C + G = A + T 
 
A controlled experiment.... 
A. Includes at least two groups, one of which does not receive the experimental treatment. 
B. Proceeds at a slow pace to guarantee that the scientist can carefully observe all results. 
C. Includes at least two groups, one different from the other by two or m...
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Biology 1406 exam 5 questions and answers already passed
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Biology 1406 exam 5 questions and 
 
answers already passed 
 
In 1928, __________ was surprised to find that when he 
killed pathogenic bacteria, then mixed the bacterial remains 
with living harmless bacteria, some living bacterial cells 
became pathogenic. Frederick Griffith 
 
In 1952, ___________ used bacteriophages to 
show that DNA is the genetic material of T2, a virus that infects the 
bacterium Escherichia coli (E. coli). Hershey-Chase 
 
__________ are viruses that infect bacterial 
c...
-
biology 1406 exam 5 Questions and Answers with complete solution
- Exam (elaborations) • 5 pages • 2023
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In 1928, __________ was surprised to find that when he 
killed pathogenic bacteria, then mixed the bacterial remains 
with living harmless bacteria, some living bacterial cells 
became pathogenic. - Frederick Griffith 
In 1952, ___________ used bacteriophages to 
show that DNA is the genetic material of T2, a virus that infects the 
bacterium Escherichia coli (E. coli). - Hershey-Chase 
__________ are viruses that infect bacterial 
cells. - Bacteriophages 
______ discovered the relationships bet...
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biology 1406 exam 5 Collin College - Question and answers already passed
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biology 1406 exam 5 Collin College - Question and answers already passed biology 1406 exam 5 
 
 
In 1928, __________ was surprised to find that when he 
killed pathogenic bacteria, then mixed the bacterial remains 
with living harmless bacteria, some living bacterial cells 
became pathogenic. - correct answer Frederick Griffith 
 
In 1952, ___________ used bacteriophages to 
show that DNA is the genetic material of T2, a virus that infects the 
bacterium Escherichia coli (E. coli). - correct an...
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Lon-Capa Assignment #9 fully solved 2023(UPDATED) Question and answers rated A+
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Lon-Capa Assignment #9 fully solved 2023(UPDATED) Question and answers rated A+ Lon-Capa Assignment #9 fully solved 2023 
 
 
How many types of RNAP are found in eukaryotes? - correct answer 3 
 
As discussed in lecture, it is possible to determine protein structure from X-ray crystallography without any knowledge of that protein's sequence. - correct answer False 
 
The Barr Body is the actively transcribed X chromosome in females. - correct answer False; Bar body means inactivation of one the...
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Biology 1406 Exam 5 Questions And Answers Already Passed 2024.
- Exam (elaborations) • 5 pages • 2024
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In 1928, __________ was surprised to find that when he 
killed pathogenic bacteria, then mixed the bacterial remains 
with living harmless bacteria, some living bacterial cells 
became pathogenic. - Answer Frederick Griffith 
 
In 1952, ___________ used bacteriophages to 
show that DNA is the genetic material of T2, a virus that infects the 
bacterium Escherichia coli (E. coli). - Answer Hershey-Chase 
 
__________ are viruses that infect bacterial 
cells. - Answer Bacteriophages 
 
______...
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