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1. In the 1800s, the scientist Paul Ehrlich injected blue dye into the bloodstream of animals. He observed that all tissues except the CNS/brain turned blue. Based on what you know about the CNS, explain Ehrlich’s results. What experiment could you design in order to stain the brain a blue […]

1. What is a protein that is found in humans, bacteria, archaebacteria, rabbits, andplants? 2. Is the cell the fundamental unit of life in plasmodial slimemolds or is the whole organism the fundamental unit? 3. Are there subgroups for sea urchins? And are there sub groupsfor Echinodermata? 4. Provide one […]

Q1. When stained with the Giemsa dye, human mitotic chromosomes show a characteristic pattern of light and dark ‘bands’. The human karyotype contains ~2000 G-dark bands that are visible in high resolution metaphase spreads. If the haploid human genome contains three billion base pairs and encodes ~30,000 genes, roughly how […]

1. Describe the structures and events of the Sliding Filament Model of muscle cell contraction. 2. What is meant by brain plasticity? Relate this to the anatomy of the brain including lobes and major functional regions. Give examples. 3. Describe the anatomy of the spinal cord and relate the anatomy […]