Jamb 2019 Biology Questions
Question 36:
Which of these is not a characteristics of a wind pollinated flowers?
- A A smaller quantities of sticky pollen produce
- B Small inconspicuous scentless flower
- C Large anthers which are loosely attached to the filament
- D Light pollen grains produced in large quantities from the anthers
- E Feathery styles of stigmas pendulously hang outrside the flower
Question 37:
A germinating seed requires oxygen which is essential for
- A The production of energy by oxidising essential carbonhydrate
- B Converting carbonhydrate into glucose
- C Transporting energy from part of the plant to another
- D The formation of water molecules within the germinating seed
- E Hydrolysis of protein
Question 38:
Which of these products obtained from analyzing sweat from skin is not an excretory product?
- A Salt
- B Water
- C Urea
- D Dust
- E Urates
Question 39:
In a breeding program a cross was made between two true breeding cow-pea types: one with round seeds and the other with wrinkled seed. If roundness is dominant why wrinkleness is recessive, in the first filial generation all the seeds produced will be
- A 50% wrinkled, 50% round
- B 75% wrinkled, 25% round
- C 100% round
- D 100% wrinkled
- E 25% wrinkled, 75% round