Q1. An amateur horse breeder has acquired four new bay-coloured mares (female horses) with uncertain pedigree. What are the probable genotypes of the mares purchased?

Q2. You are the geneticist trying to develop a sunflower with red flowers and a short stem. As you compare the sunflowers you have, what genetic variations would you look for? What sorts of plants will you select for crossing?

Q3. Describe how allergies, common cold or influenza change the structures of the respiratory system and cause decrease in gas exchange?