Study and practice Agricultural Science past questions with answers and detailed explanations. Then test your knowledge using our interactive CBT practice platform and prepare confidently for your upcoming examinations.
The expression of a gene in the phenotype irrespective of whether the cell is homozygous or heterozygous is known as
Arecessive
Bpartial dominance
Ctest-cross
Dsegregation
Edominance
View Explanation & Discuss
Question 982
waec1989
Thrips cause serious mechanical damages to crops by their
Afeeding activities on flowers, leaves and fruits
Blaying eggs on plants
Csucking of the sap of crops
Dburrowing activities causing damping off in crops
Eactivities as vectors of bacterial diseases
View Explanation & Discuss
Question 983
waec1989
The average seed rate for maize is 25 kg per hectare. Allowing for a seed wastage of 5 per cent.How many kilogram of seeds would be required in planting 10 hectares of farmland?
A237.5
B238.0
C250.0
D255.0
E262.5
View Explanation & Discuss
Question 984
waec1989
Why should a seed-producing farmer spray an insecticide on his crops only when the bees are not around?
Athe bees would sting him and he therefore avoids them
Bthe farmer does not want to waste his chemicals
Cbees are important for pollination of his crops
Dbees produce honey for him in his farm
Ebees are harmless insects
View Explanation & Discuss
Question 985
waec1989
The process of meiosis in plants ensures the production of reproduction of reproductive cells with
Athe same number of chromosomes like the parent plant
Bhalf the number of chromosomes of the parent plant
Cno chromosomes like the parent plant
Dthrice the number of chromosomes of the parent plant
Etwice the number of chromosomes of the parent plant
View Explanation & Discuss
Question 986
waec1989
The disease which most attacks groundnut is called
Arosette
Bmosaic
Csoft rot
Dpowdery mildew
Ebrown rot
View Explanation & Discuss
Question 987
waec1989
A forest established for watershed management will perform the following functions except
Areducing water pollution
Bcontrolling fish population
Ccontrolling erosion
Dmaintaining a steady stream flow
Ereducing evaporation
View Explanation & Discuss
Question 988
waec1989
In the establishment of pastures, it is best to
Aplant only grasses
Bplant only legumes
Cplant a mixture of grasses and legumes
Dlet the natural grasses grow
Eallow weeds to mix with the forage crops
View Explanation & Discuss
Question 989
waec1989
Which of the following crops is a raw material for production of chocolate?
Akolanut
Bcoffee
Cbanana
Dcocoa
Eavocado pear
View Explanation & Discuss
Question 990
waec1989
The units of inheritance which determine the various characteristics of crop are called
Achromosomes
Bnuclei
Cgenes
Dcytoplasm
Emembranes
View Explanation & Discuss
Question 991
waec1989
Which of the following is not an effect on man of the various preventive and control measures of diseases and pests of crops?
Aair pollution
Bwater poisoning
Cfood contamination
Dpoor health
Epoor utilization
View Explanation & Discuss
Question 992
waec1989
The growing of both forest and agricultural crops on the same piece of land is termed
Amixed cropping
Bmixed farming
Cforestry
Dtaungya system
Epoor reproductive ability
View Explanation & Discuss
Question 993
waec1989
The desirable characteristics of forage crops include the following except
Apalatability
Bdependability
Chigh yield
Dresistance to trampling
Epoor reproductive ability
View Explanation & Discuss
Question 994
waec1989
The distance between two successive yam mounds should be about
A0.10 m
B1.00 m
C10.00 m
D100.00 m
E1000.00 m
View Explanation & Discuss
Question 995
waec1989
The best tool(s) a farmer should use to measure out a large farm accurately include(s) the
Agarden line and measuring tape
Bmeasuring tape and ranging poles
Cmeasuring tape only
Dgarden line only
Eranging poles and garden line
View Explanation & Discuss
Question 996
waec1989
The most important limitation of agricultural mechanization is
Asmall holdings
Black of technical know-how
Cpoor marketing system
Dinadequate storage facilities
Epest attack
View Explanation & Discuss
Question 997
waec1989
The instrument used to measure the relative humidity is
Athermometer
Banemometer
Chygrometer
Dhydrometer
Erain gauge
View Explanation & Discuss
Question 998
waec1989
Which of the following sources of farm power cannot be effectively used for processing agricultural products?
Aanimals
Belectricity
Csun
Dmachines
Ewind
View Explanation & Discuss
Question 999
waec1989
The advantage of providing drainage ditches in farms is that it
Arequires periodic clearing
Bis inconvenient for farm mechanization
Cis labour intensive
Dis unsuitable for draining basement of farm buildings
Eis easily adopted by samll scale farmers
View Explanation & Discuss
Question 1000
waec1989
Rhizobium supplies nitrogen to leguminous plants by
Achanging some mineral salts to sulphate of ammonia
