Which statement explains why approximately half of an individual’s DNA sequence comes from each parent?A. A cell from one parent undergoes mitotic cell division, producing offspring cells that have only half of that parent’s DNA. B. Cells in the parents undergo mitosis, producing offspring cells that meet up during fertilization to produce an individual with half of each parent’s DNA. C. A cell from one parent undergoes meiosis, producing offspring cells that have both parents’ DNA. D. Cells in the parents undergo meiosis, producing haploid gametes that meet up during fertilization to produce a diploid individual.
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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.
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Which statement explains why approximately half of an individual’s DNA sequence comes from each pare...
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