Imagine you are studying a diploid organism that has 14 chromosomes. Answer the following questions about this organism.
Mitosis
1. Number of chromosomes present after S phase:
2. Number of chromatids present after S phase:
3. Number of chromosomes lined up on the metaphase plate:
4. Number of daughter chromosomes at anaphase:
5. Chromosomes present in the daughter cells after cytokinesis:
Meiosis
1. Number of homologous pairs of chromosomes:
2. Number of tetrads formed during prophase 1:
3. Number of chromatids in prophase 1:
4. Numbers of tetrads lined up at metaphase 1:
5. Number of chromosomes in cells after Meiosis 1:
6. Number of chromatids in cells after Meiosis 1:
7. Number of tetrads during prophase II:
8. Number of chromosomes lined up on the metaphase Il plate:
9. Number of chromatids lined up on the metaphase II plate:
10. Number of daughter chromosomes at anaphase II:
11. Number of chromosomes in cells after Meiosis

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.