Question 1: Briefly describe the biological species concept?
Question 2: A population of butterflies include both brown and white winged specimens. Wing colour is determined by one gene with two alleles. The allele for brown wings is dominant over the one for white wings. Under hardy weinberg conditions, 91% of the butterflies are brown. In a population of 1000 butterflies, what is the total number of individuals that are heterozygous? Include all steps.
Question 3: Mules are crosses between two species, female horses and male donkeys. They are bred as work animals because they ideally unite the most desirable properties of each parent species. Mules are viable but not fertile. Explain whether or not their existence poses a challenge to the biological species concept.
Question 4: Which event occurred first in the history of life, photosynthesis or aerobic respiration? Briefly explain your answer
Question 5: Why are Gram negative bacteria less sensitive to some antibiotics than Gram positive bacteria?
Question 6: Describe the structure and lifecycle of a virulent bacteriophage in detail. Use applicable terms.