Natural Selection Continued (2/9)

Question 1

What is an individual’s “fitness”?

Answer 1

The relative ability of an individual to reproduce and contribute to the next generation

Question 2

Bacterial Resistance to Antibiotics

Answer 2

• a bacterium can pass its genes for drug-resistance to other unrelated bacteria simply by cell-to-cell contact
• drug resistant strains spread rapidly

Question 3

Plasmids (bacterial “sex”)

Answer 3

exchange of genetic material but no actual reproduction;

• a bacterium can pass its genes to other unrelated bacteria by cell to cell contact
• the evolve hella fast