Year :
1991
Title :
Biology
Exam :
JAMB Exam
Paper 1 | Objectives
31 - 40 of 50 Questions
| # | Question | Ans |
|---|---|---|
| 31. |
Epigeal germination can be found in A. sorghum B. maize C. millet D. groundnut |
D |
| 32. |
A dwarf plant can be stimulated to grow to normal height by the application of A. thyroxin B. gibberellin C. insulin D. kinin |
B |
| 33. |
The greatest contribution to genetic studies was made by A. Thomas Morgan B. Gregor Mendel C. Charles Darwin D. Robert Hooke |
B |
| 34. |
The exchange of genes between homologous chromosomes is called A. test cross B. back cross C. crossing-over D. mutation |
C |
| 35. |
When two heterozygotes mate, the dominant trait will appear in A. the F1 generation only B. the F2 generation only C. both the F1 and F2 generations D. neither the F1 nor F2 generation |
C |
| 36. |
Which of the following characters is NOT sex-linked? A. River blindness B. Baldness C. Haemophilia D. Colour blindness |
A |
| 37. |
The most important factors which influence an organism's way of life in its habitat are A. the physicals and biotic enviroment B. Food and water availability C. temperature, water, light and predator-prey relationship D. competition for food and spaces |
C |
| 38. |
Organisms in an ecosystem are usually grouped according to their trophic level as A. carnivores and epiphytes B. consumers and parasites C. producers and consumers D. producers and saprophytes |
C |
| 39. |
 The above diagram represents a competitive interaction between organism in communities I and II. Which of the following statements is CORRECT? A. The population of I was higher than II at the beginning of the experiments B. II was wiped out from the enviroment at the end of the experiments C. The population of II was always lower than that of D. The population of I was lower at the end of the experiment than at the beginning |
B |
| 40. |
A food web is more stable than a food chain because A. it contains more organisms B. it has greater energy source C. it is not easy to destroy D. every organism has an alternative source |
D |
| 31. |
Epigeal germination can be found in A. sorghum B. maize C. millet D. groundnut |
D |
| 32. |
A dwarf plant can be stimulated to grow to normal height by the application of A. thyroxin B. gibberellin C. insulin D. kinin |
B |
| 33. |
The greatest contribution to genetic studies was made by A. Thomas Morgan B. Gregor Mendel C. Charles Darwin D. Robert Hooke |
B |
| 34. |
The exchange of genes between homologous chromosomes is called A. test cross B. back cross C. crossing-over D. mutation |
C |
| 35. |
When two heterozygotes mate, the dominant trait will appear in A. the F1 generation only B. the F2 generation only C. both the F1 and F2 generations D. neither the F1 nor F2 generation |
C |
| 36. |
Which of the following characters is NOT sex-linked? A. River blindness B. Baldness C. Haemophilia D. Colour blindness |
A |
| 37. |
The most important factors which influence an organism's way of life in its habitat are A. the physicals and biotic enviroment B. Food and water availability C. temperature, water, light and predator-prey relationship D. competition for food and spaces |
C |
| 38. |
Organisms in an ecosystem are usually grouped according to their trophic level as A. carnivores and epiphytes B. consumers and parasites C. producers and consumers D. producers and saprophytes |
C |
| 39. |
The above diagram represents a competitive interaction between organism in communities I and II. Which of the following statements is CORRECT? A. The population of I was higher than II at the beginning of the experiments B. II was wiped out from the enviroment at the end of the experiments C. The population of II was always lower than that of D. The population of I was lower at the end of the experiment than at the beginning |
B |
| 40. |
A food web is more stable than a food chain because A. it contains more organisms B. it has greater energy source C. it is not easy to destroy D. every organism has an alternative source |
D |