1993 - WAEC Biology Past Questions and Answers - page 5
Which of the following substances cannot control the growth of harmful micro organisms?
Which of the following is the underlining Principle in the adoption of biological control of pests?
The largest game reserve in Nigeria is the
The following agencies are responsible for conservation of in Nigeria except
The table below indicates the result of an experiment during which grains of different colours in two maize cobs were counted
| Maize cob | White | Pink | Red |
| I | 30 | 60 | 30 |
| II | 50 | 99 | 49 |
Which of the following ratios agrees with the result?
One of the factors that must be considered for safe blood transfusion is
One of the major criticisms against ‘Mendelian laws is that they do not recognize that
Identical twins inherit their genes from
The offspring produced when pure strains interbreed is described as
Which of the following diseases or disorders can be prevented by the application of the knowledge of
heredity through marriage counselling?