Darwin's theory of evolution by natural selection

Question 1

What is darwin’s theory?

Answer 1

Evolutionary change has occurred and that natural selection is the process that has driven this change

Question 2

What is the process of natural selection?

Answer 2

-Individuals in a species will show change through differences in genes
-Individuals with characteristics more suited for survival in their environment will have a higher chance of survival
-Surviving individuals will most likely reproduce and pass on the advantageous alleles
-Over many generations these alleles will become more common in the population

Question 3

Describe the process of antibiotic resistance.

Answer 3

-A random mutation can give rise to a new bacterial allele that codes for antibiotic resistance
-When the bacterial population is exposed to an antibiotic any individuals without antibiotic resistance will die, while those with antibiotic resistance will survive
-the surviving bacteria will reproduce and pass on the resistant alleles
-Over generations frequency of antibiotic-resistant alleles will increase and be more common in the population