JAMB UTME - Biology - 1987

The function of the loop of Henle is to

A severe deficiency of thyroxin results in

If a plant homozygous for round and yellow (RR : YY), is crossed with a wrinkle green type (rr : yy) all of the resulting seeds will be

The growth of a coleoptile towards unilateral light source is due to

Which of the plants is likely to be desert species?

Which of the plants is likely to have broad leaves and thin cuticle

Which of the following relates to edaphic factors?

A flower showing radial symmetry is said to be

A samara differs from a cypsela by having

In which of the following crosses will all the female offspring be colour blind?

Secondary thickening is initiated in a dicotyledonous stem by the

In most true ferns sporangia are grouped into

Which of the following is not a characteristics of snail?

The crayfish is an arthropod because

An organism found on a bare rock surface has features of algae and fungi. The organism is

One of the functions of UNICEF is to

The sequence of ear ossicles from the fenestra ovalis is

Epiphytes growing on the branches of trees provide an example of the relationship known as

The process by which lime is added to clay soil is known as

Which of the following features of euglena is found only in animals?

In demonstrating the importance of mineral elements in plants, the culture bottle must be darkened to

The vitamin which is important in the formation of the retina pigment is

In the reproduction of mosses, water is essential because

The center for controlling body temperature in the brains is the

The ratio of carriers to sicklers in the F1 generation derived from a parental cross of two carriers of haemoglobin S gene is

The hypha of Rhizopus is said to be non septate because it

Growth can best be determined in a population of Spirogyra by measuring the

Fatigue of leg muscles may occur after riding many kilometers on a bicycle because of

In the standard experiment to show that oxygen is given off during photosynthesis, sodium bicarbonate is used to

The flower shown above is

A characteristic that distinguishes bryophytes from flowering plants is the

In the life history of butterfly, destruction of crops is caused by the

An example of monohybride inheritance in man is

The function of the clitellum in the earthworm is to

The functions of endoplasmic reticulum is

The correct sequence of tissues in the anatomy of a young dicotyledonous stem from the inside to the outside is

Unlike auxins, gibberellins

The plantain reproduces asexually by

A good example of a disploblastic bryophytes from flowering plants is the

In a plant exhibiting alternation of generations, the diploid multicellular stage is known as

A gene which expresses itself only in the homozygous condition is

Nitrifying bacteria are important because they

Sclerenchyma cells are lignified to

Poliomyelitis is an infectious diseases caused by

The oxidative part of the respiratory process takes place in the

In tapeworm, the two structure that run throughout the length of the body are the

One cubic centimeter of lymph is richer than an equal volume of blood in

The pineapple fruit is best described as

Which of the following lists of organs is directly involved in nutrition?

Most cells in higher animals retain their power of division EXCEPT