A gene found in naturaly occurring soil bacterium, Bacilus thuringiensis (B), contains a protein that kills certain insects. Scientists have genetically modified certain organisms such as corn, potatoes, and cotton by introducing the B: gene into their DNA in order for these plants to have this desired trat. Which question were the scientists most likely trying to answer?
А)How can farmers produce more nutritional crops? B) How can farmers use less insecidies on their crops? C) How can farmers reduce the amount of land needed to grow their crops ? D) How can farmers reduce the amount of fertilizers they apply to the soil for their crops ?

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.