Quiz - DNA Structure
Quiz
•
Science
•
9th - 12th Grade
•
Medium
Noor Sommer
Used 29+ times
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25 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Griffith isolated two strains of bacteria. Which one was the virulent bacteria?
S-strain
R-strain
P-strain
K-straain
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was the primary focus of Frederick Griffith's experiments?
Investigating the structure of DNA
Exploring the role of bacteria in causing diseases
Studying the effects of antibiotics on bacterial growth
Examining the process of photosynthesis in plants
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If 32% of all nucleotides is thymine and 18% is guanine, how much percent is cytosine?
32
18
50
We can't tell
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What bacterium did Frederick Griffith use in his experiments?
Escherichia coli
Streptococcus pneumoniae
Staphylococcus aureus
Bacillus subtilis
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was the outcome of Griffith's experiments with mice?
The mice remained healthy after exposure to the bacteria
The mice developed symptoms of a bacterial infection but recovered quickly
The mice died from pneumonia caused by the bacteria
The mice developed immunity to the bacteria
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What did Griffith observe when he injected mice with a mixture of heat-killed S strain bacteria and live R strain bacteria?
The mice developed pneumonia and died
The mice remained healthy with no signs of infection
The mice developed mild symptoms of illness but recovered
The mice developed immunity to the bacteria
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What conclusion did Griffith draw from his experiments?
Heat-killed bacteria can cause infections in mice
Transformation had occurred, and genetic material could be transferred between bacteria
Mice are immune to bacterial infections
Bacterial infections are caused by viruses
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