TOPIC: ANIMAL IMPROVEMENT
DIRECTION: Choose the correct answer from the lettered options.
1. One major advantage of inbreeding in animals is that it _______.
A. increases hybrid vigour
B. increases multiple births
C. eliminates undesirable traits
D. reduces the number of males needed in a herd
The correct answer is option [A]
2. Selection and hybridisation are all methods of animal ______.
A. insemination
B. grading
C. quarantine
D. improvement
The correct answer is option [D]
3. In methods of animal improvement, the physical transfer of animals from their
country of origin to another country is called _______.
A. addiction
B. introduction
C. intrudiction
D. alteration
The correct answer is option [B]
4. The kuri breed of cattle is commonly found in ________ state.
A. Borno
B. Sokoto
C. Plateau
D. Oyo
The correct answer is option [A]
5. The process of mating different breeds of animals is known as __________.
A. crossbreeding
B. inbreeding
C. outbreeding
D. linebreeding
The correct answer is option [A]
6. Nagana in cattle is otherwise known as ________ .
A. trypanosomiasis
B. babiosis
C. ascariasis
D. fascioliasis
The correct answer is option [A]
TOPIC: CROP IMPROVEMENT
DIRECTION: Choose the correct answer from the lettered options.
1. The factor that controls the appearance of a given character in an organism is
called _______.
A. gane
B. gene
C. ganetics
D. gamatics
The correct answer is option [B]
2. Mendel’s law of segregation states that ________.
A. when two impure breeding organisms with a pair of contrasting characters are
crossed, only the dominant character is expressed in first filial generation.
B. when two pure breeding organisms with a pair of contrasting characters are
crossed, only the dominant character is expressed in the first filial generation.
C. when three pure and impure breeding organisms are crossed only the recessive
character is expressed.
D. none of the above
The correct answer is option [B]
3. When a genotype consist of a dominant and a recessive allele, the phenotype will
be like ______ allele.
A. the recessive
B. the dominant
C. the dominant recessive
D. none of the above
The correct answer is option [B]
4. An allele is defined as _______.
A. a homozygous genotype
B. a hetirozygous genetype
C. another word for a gene
D. one of several possible forms of gene
The correct answer is option [D]
5. Artificial colostrum can be prepared by mixing the following materials except ______.
A. groundnut oil
B. antibiotics
C. milk
D. egg
The correct answer is option [A]
6. There are two heterozygous parents with genetically inherited dominant trait. What
is the probability that they will have a child together who has this trait in his or her
phenotype?
A. 25%
B. 100%
C. 50%
D. 75%
The correct answer is option [D]
7. Which of the following is not an aim for crop improvement?
A. To produce crops that mature early
B. To meet the needs of growers
C. To increase the quantity of produce
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