WAEC 2018 Biology Obj And Essay Answer – May/June Expo

WAEC Biology Obj And Essay/Theory Solution Questions and Answer – MAY/JUNE 2018 Expo Runz. Biology OBJ: 1BDDCCBCDBC 11ADCDCCAACC 21CAABBBBCBC 31CABCCACDAA 41ABBDDADDAB (4ai) Gene is the discrete unit of inheritance which are found in the chromosomes of all cell. (4aii) A hybrid is an offspring obtained from the cross-breeding of the species that are not closely related. (4aiii) Trait is the characteristic factor of an individual which are hereditary. (4b) Draw the diagram Phenotyoic ratio= 3:1 Genotypic ratio= 1:2:1 (4c) The four transmittable characters in plants are: -Height -Colour -Shape of fruit -Size of Leaf 6ai) Chemosynthesis is the biological conversion of one or more carbon-containing molecules (usually carbon dioxide or methane) and nutrients into organic matter using the oxidation of inorganic compounds (e.g., hydrogen gas, hydrogen sulfide) or methane as a source of energy, rather than sunlight 6aii) i)Bacteria ii)methanogenic archaea 6b) Nitrogen — 78 pe...