Q1. The ant, Myrmecia pilosula, is establish in Australia and is nicknamed the bulldog ant as of its aggressive behaviour. It is particularly interesting because it carries all its genetic information in a single pair of chromosomes. In other words, 2n=2. (Males are haploid and have just one chromosome). How numerous chromosomes would be in an egg cell produced by the Queen Bull dog ant before fertilization?

Q2. Cyanobacteria grow prolifically in streams and lakes with low oxygen levels and high nutrient concentrations. How may the presence or absence of cyanobacteria be used as an index of pollution in lakes?