Variation in Populations

What this topic covers

Differentiate between continuous and discontinuous variations with examples of morphological variations (size, colour, fingerprints). Relate the role of environmental conditions, habitat, and genetic constitution to variation. Measure heights and weights of pupils of the same age group and plot frequency distribution graphs. Observe and record various colour patterns. Apply classification of fingerprints in identity detection. Identify specific examples of physiological variation (ability to roll tongue, ability to taste phenylthiocarbamide (PTC), blood groups) and categorize people according to their physiological variation. Apply the knowledge of blood groups in blood transfusion and determination of paternity. Use discontinuous variation in crime detection.