Comparing Viral Structures
Not all viruses are the same. Viruses can have
different shap...
Biology, 24.04.2020 20:11 unicornsflyhigh
Comparing Viral Structures
Not all viruses are the same. Viruses can have
different shapes, different proteins, and different
types of genetic material. Based on the three
viruses pictured, what structural characteristics do
all viruses share?
A. Head and tail
B. DNA and a membrane envelope
C. Membrane envelope and a capsid
D. Genetic material and a capsid
Answers: 2
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In 1959, doctors began using the powerful antibiotic methicillin to treat infections of staphylococcus aureus, but within two years, methicillin-resistant strains of s. aureus (mrsa) appeared. how did the resistant strains of s. aureus emerge? in 1959, doctors began using the powerful antibiotic methicillin to treat infections of staphylococcus aureus, but within two years, methicillin-resistant strains of s. aureus (mrsa) appeared. how did the resistant strains of s. aureus emerge? staphylococcus aureus bacteria that were able to synthesize cell walls using a protein that was not affected by methicillin survived the methicillin treatments and reproduced at higher rates than did other individuals. over time, these resistant individuals became increasingly common. in response to treatment of staphylococcus aureus infections with methicillin, some bacteria began to synthesize cell walls using a protein that was not affected by methicillin. these bacteria survived the methicillin treatments and reproduced at higher rates than did other individuals. over time, these resistant individuals became increasingly common. in response to treatment of staphylococcus aureus infections with methicillin, bacterial populations gradually began to synthesize cell walls using a protein that was not affected by methicillin.
Answers: 3
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