Question 526:

• JAMB 1987

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

A. Total length of the filament
B. Total widths of the filaments
C. Rate of photosynthesis in the population
D. Dry weights of the organism

Question 527:

• JAMB 1987

Most cells in higher animals retain their power of division EXCEPT

A. Lymphocytes
B. Nerve cells
C. Malpighian cells
D. Germ cells

Question 528:

• JAMB 1987

A severe deficiency of thyroxin results in

A. Diabetes mellitus
B. Sexual underdevelopment
C. Cretinism
D. Gigantism

Question 529:

• JAMB 1987

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

A. Rapid rate of photosynthesis
B. Unequal distribution of auxin
C. The effect of geotropism
D. The effect of photolysis

Question 530:

• JAMB 1987

The sequence of ear ossicles from the fenestra ovalis is

A. Malleus, incus and stapes
B. Malleus, stapes and incus
C. Stapes, incus and malleus
D. Stapes, malleuls and incus