Bacteria that infect skin wounds can become resistant to the antibiotic commonly used to kill them.
Which statement explains how these bacteria could become resistant to the antibiotic?
1 )
Exposure to the antibiotic causes a change in the bacterial cell wall, preventing the antibiotic from working.
2 )
Other bacteria that normally protect the skin against infection are killed by the antibiotic, allowing the infectious bacteria to survive.
Random mutations in DNA allow some of the bacteria to survive in the presence of the antibiotic.
4 )
The antibiotic causes the bacterial DNA to mutate, allowing the bacteria to survive in the presence of the antibiotic.
تحلیل ویدئویی تست
منتظریم اولین نفر تحلیلش کنه!
پرسش و پاسخ های مشابه
سوال کنید یا به سوالات دیگران پاسخ دهید ...