Year :
2012
Title :
Biology
Exam :
WASSCE/WAEC MAY/JUNE
Paper 1 | Objectives
51 - 60 of 62 Questions
| # | Question | Ans |
|---|---|---|
| 51. |
Which of the following statements is true about the ABO blood group system? A. Antigens are located on the surface of white blood cells B. Antibodies are located in the blood plasma C. Antibodies are located on the surface of red blood cells D. Antigens are located in the blood plasma |
B |
| 52. |
The classes of fingerprints in man are A. whorl, alternate, opposite and compound B. compound, loop, whorl! and alternate C. whorl, arch, compound and loop D. arch, simple, compound and opposite |
C |
| 53. |
Which of the following diseases is transmittable through genes? A. HIV /AIDS B. Sickle cell anaemia C. Diabetes D. Presbyopia |
B |
| 54. |
Two plants with red flowers were back crossed, which of the following results indicate that the plants are heterozygous A. 75% red and 25% white B. 50% red and 50% white C. 100% white D. 100% red |
A |
| 55. |
In the structure of DNA, which of the following statements is true? A. The double helix are held together by covalent bonds B. Nucleotide is made up of ribose, phosphate and an organic nitrogen compound C. Guanine is the opposite of cytosine D. Adenine is the opposite of cytosine |
C |
| 56. |
In a case of complete dominance, what is the phenotypic ratio of the cross Bb X Bb; where B =black and b = white? A. 1 black : 1 grey : 2 whites B. 1 black : 3 whites C. 1 black : 2 blues : 1 white D. 3 blacks : 1 white |
D |
| 57. |
Two yellow-flowered hybrid plants each carrying a recessive factor for flowers with green colour were crossed. A. 2 in 2 B. 1 in 3 C. 1 in 4 D. 1 in 5 |
C |
| 58. |
What name is given to a sudden change in a gene or chromosome? A. Allele B. Genotype C. Mutation D. Phenotype |
C |
| 59. |
Bees are of great importance to the farmer because they A. provide him with honey B. pollinate flowers C. sting crop pests to death D. destroy flowers by sucking nectar from them |
B |
| 60. |
Which of the following sequences is the correct evolutionary trend in plants? A. Algae → liverworts → mosses → ferns B. Liverworts → mosses → ferns → algae C. mosses → algae → ferns → liverworts D. Ferns → Liverworts → mosses → algae |
A |
| 51. |
Which of the following statements is true about the ABO blood group system? A. Antigens are located on the surface of white blood cells B. Antibodies are located in the blood plasma C. Antibodies are located on the surface of red blood cells D. Antigens are located in the blood plasma |
B |
| 52. |
The classes of fingerprints in man are A. whorl, alternate, opposite and compound B. compound, loop, whorl! and alternate C. whorl, arch, compound and loop D. arch, simple, compound and opposite |
C |
| 53. |
Which of the following diseases is transmittable through genes? A. HIV /AIDS B. Sickle cell anaemia C. Diabetes D. Presbyopia |
B |
| 54. |
Two plants with red flowers were back crossed, which of the following results indicate that the plants are heterozygous A. 75% red and 25% white B. 50% red and 50% white C. 100% white D. 100% red |
A |
| 55. |
In the structure of DNA, which of the following statements is true? A. The double helix are held together by covalent bonds B. Nucleotide is made up of ribose, phosphate and an organic nitrogen compound C. Guanine is the opposite of cytosine D. Adenine is the opposite of cytosine |
C |
| 56. |
In a case of complete dominance, what is the phenotypic ratio of the cross Bb X Bb; where B =black and b = white? A. 1 black : 1 grey : 2 whites B. 1 black : 3 whites C. 1 black : 2 blues : 1 white D. 3 blacks : 1 white |
D |
| 57. |
Two yellow-flowered hybrid plants each carrying a recessive factor for flowers with green colour were crossed. A. 2 in 2 B. 1 in 3 C. 1 in 4 D. 1 in 5 |
C |
| 58. |
What name is given to a sudden change in a gene or chromosome? A. Allele B. Genotype C. Mutation D. Phenotype |
C |
| 59. |
Bees are of great importance to the farmer because they A. provide him with honey B. pollinate flowers C. sting crop pests to death D. destroy flowers by sucking nectar from them |
B |
| 60. |
Which of the following sequences is the correct evolutionary trend in plants? A. Algae → liverworts → mosses → ferns B. Liverworts → mosses → ferns → algae C. mosses → algae → ferns → liverworts D. Ferns → Liverworts → mosses → algae |
A |