Q1. Monarch butterfly populations are found east and west of Rocky Mountains. How can DNA fingerprinting technology be used to establish that they constitute one breeding population or two separate breeding populations? Q2. Consider what will happen to a cell if an H+ ionophore causes a partial dissipation of the […]

Vinegar, which is just a dilute acetic acid solution, is very common and versatile. The concentration of store-bought vinegar, around a 5.0% solution by mass, and its density is approximately 1.01 g/mL a) suppose I dilute this vinegar into a bottle to 3 parts water, to 1 part water (in […]

1. Describe as many specific bacterial toxins as you can,their regulation (if known), mode of action, similarities and/ordissimilarities. 2. Bacteria can bring benefit to its host. Brieftly explain and give a few example how bacteria can be   Positive/beneficial effects on its host host. 3. Describe the 4 types of secretion […]

Mendel crossed pea plants that were PP dd (purple flowers and short stems) with pp DD (white flowers and tall stems), and self-pollinated the F1 to obtain an F2. The two loci assort independently. Purple is dominant to white and tall is dominant to short. What proportion of the purple […]