Biology, 19.11.2020 01:00, live4dramaoy0yf9
E. coli is a species of bacteria that causes many different infections in humans. Certain E. coli strains have developed resistance to antibiotics, making infections with these
strains difficult to treat. How do bacteria such as E. coli, which reproduce asexually, gain new traits such as antibiotic resistance?
OA by undergoing spontaneous mutations when they replicate, which increases genetic variation in a population
B. by producing offspring with new gene assortments from genetic recombination, which increases diversity in a population
OC. by mutating their DNA in response to environmental conditions to gain beneficial traits
OD. by adapting to changes in environmental conditions without undergoing changes in their DNA
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Biology, 22.06.2019 10:00, layshascott
With regard to enzymes, key is to lock as a) substrate is to activation energy eliminate b) product is to substrate. c) enzyme is to active site. d) substrate is to active site.
Answers: 1
Biology, 22.06.2019 10:30, sydney6384
In a lab, scientists grew several generations of offspring of a plant using the method shown. what conclusion can you make about the offspring? a. they formed from meiosis and mitosis. b. they have half the number of chromosomes as their parent. c. they have low genetic variability among them. d. they will be able to reproduce only after they grow flowers.
Answers: 2
E. coli is a species of bacteria that causes many different infections in humans. Certain E. coli st...
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