Year :
1987
Title :
Biology
Exam :
JAMB Exam
Paper 1 | Objectives
31 - 40 of 50 Questions
| # | Question | Ans |
|---|---|---|
| 31. |
Most cells in higher animals retain their power of division EXCEPT A. lymphocytes B. nerve cells C. malpighian cells D. germ cells |
B |
| 32. |
A severe deficiency of thyroxin results in A. diabetes mellitus B. sexual underdevelopment C. cretinism D. gigantism |
C |
| 33. |
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 |
B |
| 34. |
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 |
C |
| 35. |
The center for controlling body temperature in the brains is the A. cerebrum B. cerebellum C. medulla D. hypothalamus |
D |
| 36. |
Unlike auxins, gibberellins A. induces the formation of adventitious roots B. do not affect leaf and fruit abscission C. cannot stimulate stem elongation D. are quite effective as herbicides |
B |
| 37. |
A gene which expresses itself only in the homozygous condition is A. a mutant B. dominant C. recessive D. lethal |
C |
| 38. |
An example of monohybride inheritance in man is A. astigmatism B. cretinism C. hyperthyroidism D. albinism |
D |
| 39. |
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 A. blue and wrinkled B. round and yellow C. wrinkled and yellow D. round and greenish yellow |
B |
| 40. |
The ratio of carriers to sicklers in the F1 generation derived from a parental cross of two carriers of haemoglobin S gene is A. 3 : 1 B. 1 : 3 C. 2 : 1 D. 1 : 2 |
C |
| 31. |
Most cells in higher animals retain their power of division EXCEPT A. lymphocytes B. nerve cells C. malpighian cells D. germ cells |
B |
| 32. |
A severe deficiency of thyroxin results in A. diabetes mellitus B. sexual underdevelopment C. cretinism D. gigantism |
C |
| 33. |
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 |
B |
| 34. |
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 |
C |
| 35. |
The center for controlling body temperature in the brains is the A. cerebrum B. cerebellum C. medulla D. hypothalamus |
D |
| 36. |
Unlike auxins, gibberellins A. induces the formation of adventitious roots B. do not affect leaf and fruit abscission C. cannot stimulate stem elongation D. are quite effective as herbicides |
B |
| 37. |
A gene which expresses itself only in the homozygous condition is A. a mutant B. dominant C. recessive D. lethal |
C |
| 38. |
An example of monohybride inheritance in man is A. astigmatism B. cretinism C. hyperthyroidism D. albinism |
D |
| 39. |
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 A. blue and wrinkled B. round and yellow C. wrinkled and yellow D. round and greenish yellow |
B |
| 40. |
The ratio of carriers to sicklers in the F1 generation derived from a parental cross of two carriers of haemoglobin S gene is A. 3 : 1 B. 1 : 3 C. 2 : 1 D. 1 : 2 |
C |