Take your time to read instructions before taking this test.

There are 40 questions which you are to answer in 15 minutes that gives you roughly 30 seconds per question.

If you can get at least 60%, you can be rest assured that you’ll ace AGR 201 exam

In a normal exam you will be asked between 40 – 60 questions but I only arranged 40 questions

Note

Do not be in a hurry to answer the questions
Do not waste time on a question you don’t know
Move as fast as possible and starting with questions that don’t have calculation first to save time
Always crosscheck
Don’t be in a hurry to submit, you are not in a competition
Don’t be scared. Getting an A is easy
Don’t be over confident, you can end up a D, E or F. Calm your blood, no be only you sabi book

Please do well to use our comment box incase there’s a message you want to pass to us

70 – 100 A

60 – 69 B

50 – 59 C

45 – 49 D

40 – 44 E

0 – 39 F

I wish you success

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AGR 201

1 / 40

1. Which of the following is NOT a type of land tenure system?

A. Leasehold

B. Communal

C. Photosynthetic

D. Inheritance

2 / 40

2. Which disease is associated with prions in cattle?

A. Creutzfeldt-Jakob Disease (CJD)

B. Fatal Familial Insomnia

C. Bovine Spongiform Encephalopathy (BSE)

D. Chronic Wasting Disease

3 / 40

3. What is the main habitat of Crenarchaeota?

A. Human intestines

B. Hot springs and deep-sea vents

C. High-pressure areas

D. Cold oceanic regions

4 / 40

4. The word "science" is derived from which Latin word?

A. Scientium

B. Scineto

C. Sciento

D. Scientia

5 / 40

5. Which cycle describes a virus integrating its genetic material into the host genome and remaining latent?

A. Lysogenic cycle

B. Replication cycle

C. Budding cycle

D. Lytic cycle

6 / 40

6. What is a virion?

A. An extracellular form of a virus

B. A protein complex in the nucleus

C. A type of bacterial cell

D. A type of immune cell

7 / 40

7. What kind of reproduction is most common in protozoa?

A. Binary fission

B. Budding

C. Spore formation

D. Sexual reproduction

8 / 40

8. Which type of nucleic acid is found in a virus?

A. Only RNA

B. Only DNA

C. Both DNA and RNA simultaneously

D. Either DNA or RNA, but not both

9 / 40

9. Which of the following viruses exhibits icosahedral symmetry?

A. Tobacco mosaic virus

B. Rhabdovirus

C. Rabies virus

D. Polio virus

10 / 40

10. What mechanism is primarily responsible for the replication of viroids?

A. Viral enzymes

B. Reverse transcriptase

C. Host ribosomes

D. Host enzymes

11 / 40

11. What does primary agriculture primarily involve?

A. Road and railway construction

B. Processing of milk into butter and cheese

C. Farming operations like cultivation and livestock rearing

D. Building residential complexes

12 / 40

12. What is a key characteristic of prion diseases?

A. Stability in the environment

B. Dual RNA and DNA genomes

C. Rapid replication in host cells

D. Dependence on host enzymes for replication

13 / 40

13. Which type of Archaebacteria produces methane?

A. Crenarchaeota

B. Thaumarchaeota

C. Nanoarchaeota

D. Euryarchaeota

14 / 40

14. What is the mode of nutrition in protozoa that use pseudopodia to engulf their prey?

A. Diffusion

B. Pinocytosis

C. Autotrophy

D. Phagocytosis

15 / 40

15. What determines the helical capsid's diameter in helical viruses?

A. The size of the host cell

B. The characteristics of its protomeres

C. The number of nucleic acid strands

D. The type of envelope

16 / 40

16. What is the main source of greenhouse gas emissions in agriculture according to the United Nations?

A. Livestock sector

B. Forestry practices

C. Use of organic fertilizers

D. Crop rotation techniques

17 / 40

17. What is the genetic material of a virus enclosed in?

A. Envelope

B. Mitochondria

C. Capsid

D. Ribosome

18 / 40

18. What are viroids primarily composed of?

A. Single-stranded RNA

B. Single-stranded DNA

C. Double-stranded RNA

D. Protein coat and DNA

19 / 40

19. What is the role of stromatolites in studying early life?

A. Provide evidence of early atmospheric composition

B. Indicate volcanic activity

C. Serve as fossilized microbial mats

D. Demonstrate ancient photosynthetic pathways

20 / 40

20. What is a naked virus?

A. A virus without an envelope

B. A virus without a host

C. A virus without a capsid

D. A virus without genetic material

21 / 40

21. Which term describes Archaebacteria’s ability to resist antibiotics?

A. Antibiotic resistance enzymes in plasmids

B. Gram-negative cell structure

C. Membrane-bound organelles

D. Anaerobic adaptation

22 / 40

22. Which of the following Archaebacteria is found in human guts?

A. Thermoplasma

B. Ignicoccus

C. Lokiarcheota

D. Methanobrevibacter smithii

23 / 40

23. Which type of Archaebacteria oxidizes ammonia?

A. Euryarchaeota

B. Thaumarchaeota

C. Nanoarchaeota

D. Korarchaeota

24 / 40

24. What does the term "cytolytic bacteriophage" refer to?

A. A virus that remains dormant in the host cell

B. A virus that only infects animal cells

C. A virus that integrates into the host DNA

D. A virus that causes lysis of the host cell

25 / 40

25. Which of the following protozoa have flagella for locomotion?

A. Plasmodium

B. Trypanosoma

C. Amoeba

D. Paramecium

26 / 40

26. What is the primary characteristic of Archaebacteria?

A. Survival in extreme conditions

B. Ability to perform photosynthesis

C. Presence of a cellulose cell wall

D. Possession of membrane-bound organelles

27 / 40

27. What is the function of the contractile vacuole in protozoa?

A. Locomotion

B. Osmoregulation

C. Ingestion of food

D. Reproduction

28 / 40

28. What triggers the activation of cytotoxic T-cells in a virally infected cell?

A. Release of mature virions

B. Production of double-stranded RNA

C. Formation of inclusion bodies

D. Expression of viral protein on the surface of the plasma membrane

29 / 40

29. What makes Archaebacteria indifferent to major antibiotics?

A. Possession of plasmids with resistance enzymes

B. Unique lipids in their membranes

C. Presence of chloroplasts

D. Absence of cell walls

30 / 40

30. Which of the following is a disadvantage of the communal land tenure system?

A. Allows unrestricted improvements on the land

B. Enables mechanized farming

C. Can be used as security for bank loans

D. Prevents the land from being sold or transferred to strangers

31 / 40

31. Which protozoan group includes Plasmodium, the causative agent of malaria?

A. Apicomplexa

B. Microspora

C. Ciliophora

D. Sarcomastigophora

32 / 40

32. What is the primary function of a contractile vacuole in protozoa?

A. Osmoregulation

B. Reproduction

C. Movement

D. Nutrient absorption

33 / 40

33. What is a defining characteristic of protozoa?

A. Presence of a cell wall

B. Multicellular structure

C. Eukaryotic and unicellular

D. Ability to photosynthesize

34 / 40

34. What process describes the incorporation of a viral genome into the host chromosome?

A. Eclipse phase

B. Adsorption

C. Budding

D. Lysogeny

35 / 40

35. What is a major environmental problem caused by intensive agriculture?

A. Increased biodiversity

B. Reduction of pest resistance

C. Reduction in water evaporation

D. Depletion of soil fertility

36 / 40

36. What is the process of a virus acquiring an envelope during replication called?

A. Fusion

B. Splicing

C. Transduction

D. Budding

37 / 40

37. What does the Hierarchical virus classification system use as one of its main criteria?

A. Host organism specificity

B. Presence or absence of an envelope

C. Mode of transmission

D. Symptoms caused by the virus

38 / 40

38. Which agricultural activity causes soil salinization?

A. Fertilizer application

B. Excessive irrigation

C. Crop rotation

D. Pesticide application

39 / 40

39. What is the main advantage of intercropping?

A. Rapid spread of diseases

B. Easy mechanization of farming

C. Increased resource utilization efficiency

D. Tailored production practices for one crop

40 / 40

40. What is the primary composition of a viral capsid?

A. Proteins

B. Lipids

C. Carbohydrates

D. Nucleic acids

Your score is

The average score is 38%

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