OOU Post UTME Biology Past Questions

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Two red-flowered plants are crossed together. Assume a single gene with red dominant over white. Which EXPECTED offspring ratio indicates that both red parents are heterozygous?

In plants, the structures that play roles similar to the arteries and veins of animals are the

The order of food passage in the digestive system is

The reproduction of cell is controlled by which of the following:

In the mammal, the autonomic system consists of

The division of nucleus is known as

Which listed quantity describes water vapour in the surrounding air, rather than a physical condition of the water itself in an aquatic habitat?

In a food web, tertiary consumers belong to which trophic level?

One of the following is not an excretory structure

The random way genes recombine during meiosis and fertilization leads to

The hereditary factor of the material for inheritance is

What happens to a man whose pancreas has been surgically removed?

Plants that are adapted to grow in dry land where water content is low are

Which of the following is NOT a function of the nucleus of a cell?

Ribosomes are found in all living cells. What is their function?

The theory that new organs or characteristics develop in organisms when there is a need for them was postulated by

In bony fishes, the swim bladder is used for

In the usual XX/XY inheritance pattern, a daughter receives her two X chromosomes directly from

The cocoon into which an earthworm lays its egg is produced in the

The primary structure responsible for pumping blood for circulation through the mammalian circulatory systems is the

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