The pie chart shows the results of a survey of the incidenc…

Biology Principles of Inheritance and Variation Single Correct MCQ

Published on: August 20, 2026

The pie chart shows the results of a survey of the incidence of blood groups A, B, AB & O amongst peope in India. Which of the following conclusions can be deduced from the diagram ?

Only 5% of individuals are heterozygous for blood group alleles.

Group O is the most common as it is the homozygous recessive group.

The alleles for blood group A and B are dominant to the allele for blood group 0.

Any individual, selected at random from the sample population, has a 1 in 20 chance of being blood group AB.

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