WAEC - Biology (1993 - No. 45)

The table below indicates the result of an experiment during which grains of different colours in two maize cobs were counted

Which of the following ratios agrees with the result?

9:3:3

1:2:1

1:3:1

2:1:1

2:3:2

First, sum up the total number of each colour in both maize cobs I and II.

i.e White (30 + 50) = 80

Pink (60 + 99) = 159

Red ( 30 + 49) = 79

Ratio 80 : 159 : 79 is approximately 1: 2: 1. Option B is the correct answer.