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Agricultural Science 2013 JAMB Past Questions

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21
A serious pest of sweet potato whose larvae
destroy the foliage is
  • A. leaf miners
  • B. weevils mea
  • C. mealy bugs
  • D. aphids.
View Answer & Discuss JAMB 2013
22
The fertility of soils under forest is sustained
mainly by
  • A. nutrient recycling
  • B. rodent activities
  • C. being protected from direct rays of the sun
  • D. preventing raindrops from directly hitting the soil.
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23
The Mendelian law of segregation states that
the characteristics which is hidden in an F1,
reappears in F2 generation in a ratio
  • A. 1 : 2
  • B. 2 : 2
  • C. 1 : 3
  • D. 3 : 2
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24
The breed of sheep that can be found
throughout Nigeria is
  • A. Yankasa
  • B. Uda
  • C. West Africa dwarf sheep
  • D. Balami.
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25
A female cattle which has not had a calf or
developed into the mature form of a cow is
referred to as
  • A. stag
  • B. vealers
  • C. yealing
  • D. heifer
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