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CBT TEST

AGR 201 CBT PRACTICE

Phil

January 11, 2025

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. How do amoeboids move and capture their prey?

A. Using pseudopodia

B. Using cilia

C. Using flagella

D. Through subpellicular microtubules

2 / 40

2. What is a defining characteristic of protozoa?

A. Presence of a cell wall

B. Multicellular structure

C. Eukaryotic and unicellular

D. Ability to photosynthesize

3 / 40

3. What is the mode of reproduction in Archaebacteria?

A. Spore formation

B. Budding

C. Binary fission

D. Sexual reproduction

4 / 40

4. What is a key characteristic of prion diseases?

A. Rapid replication in host cells

B. Dependence on host enzymes for replication

C. Stability in the environment

D. Dual RNA and DNA genomes

5 / 40

5. What is the main advantage of intercropping?

A. Increased resource utilization efficiency

B. Rapid spread of diseases

C. Tailored production practices for one crop

D. Easy mechanization of farming

6 / 40

6. What is a characteristic feature of shifting cultivation?

A. Low levels of technology and input

B. Continuous use of the same land

C. High levels of mechanization

D. Use of fertilizers

7 / 40

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

A. Anaerobic adaptation

B. Antibiotic resistance enzymes in plasmids

C. Gram-negative cell structure

D. Membrane-bound organelles

8 / 40

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

A. Eclipse phase

B. Adsorption

C. Lysogeny

D. Budding

9 / 40

9. What makes Archaebacteria indifferent to major antibiotics?

A. Absence of cell walls

B. Possession of plasmids with resistance enzymes

C. Unique lipids in their membranes

D. Presence of chloroplasts

10 / 40

10. Which type of Archaebacteria oxidizes ammonia?

A. Thaumarchaeota

B. Euryarchaeota

C. Korarchaeota

D. Nanoarchaeota

11 / 40

11. What is a naked virus?

A. A virus without a host

B. A virus without genetic material

C. A virus without an envelope

D. A virus without a capsid

12 / 40

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

A. Depletion of soil fertility

B. Reduction in water evaporation

C. Increased biodiversity

D. Reduction of pest resistance

13 / 40

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

A. Capsid

B. Ribosome

C. Mitochondria

D. Envelope

14 / 40

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

A. Pinocytosis

B. Phagocytosis

C. Autotrophy

D. Diffusion

15 / 40

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

A. Amoeba

B. Plasmodium

C. Paramecium

D. Trypanosoma

16 / 40

16. What type of nucleic acid is present in Retroviruses?

A. Double-stranded DNA

B. Single-stranded RNA with DNA intermediate

C. Double-stranded RNA

D. Single-stranded DNA

17 / 40

17. What is the primary characteristic of Archaebacteria?

A. Survival in extreme conditions

B. Presence of a cellulose cell wall

C. Possession of membrane-bound organelles

D. Ability to perform photosynthesis

18 / 40

18. Which disease is associated with prions in cattle?

A. Creutzfeldt-Jakob Disease (CJD)

B. Chronic Wasting Disease

C. Bovine Spongiform Encephalopathy (BSE)

D. Fatal Familial Insomnia

19 / 40

19. Which of the following is the reproductive stage of protozoa?

A. Cyst stage

B. Trophozoite stage

C. Sporozoite stage

D. Pellicle stage

20 / 40

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

A. Apicomplexa

B. Microspora

C. Sarcomastigophora

D. Ciliophora

21 / 40

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

A. Binary fission

B. Spore formation

C. Sexual reproduction

D. Budding

22 / 40

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

D. Formation of inclusion bodies

23 / 40

23. What does primary agriculture primarily involve?

A. Processing of milk into butter and cheese

B. Road and railway construction

C. Farming operations like cultivation and livestock rearing

D. Building residential complexes

24 / 40

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

A. Communal

B. Photosynthetic

C. Leasehold

D. Inheritance

25 / 40

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

A. Budding cycle

B. Lysogenic cycle

C. Replication cycle

D. Lytic cycle

26 / 40

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

A. Presence or absence of an envelope

B. Host organism specificity

C. Symptoms caused by the virus

D. Mode of transmission

27 / 40

27. What is the main structural difference between normal cell proteins and prion proteins?

A. Difference in protein molecular weight

B. Unique three-dimensional configurations

C. Different amino acid sequences

D. Presence of additional RNA

28 / 40

28. Which type of Archaebacteria produces methane?

A. Nanoarchaeota

B. Euryarchaeota

C. Crenarchaeota

D. Thaumarchaeota

29 / 40

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

A. A virus that integrates into the host DNA

B. A virus that only infects animal cells

C. A virus that remains dormant in the host cell

D. A virus that causes lysis of the host cell

30 / 40

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

A. Ignicoccus

B. Thermoplasma

C. Lokiarcheota

D. Methanobrevibacter smithii

31 / 40

31. What is the composition of the Archaebacterial cell wall?

A. Peptidoglycan

B. Cellulose

C. Pseudomurein

D. Chitin

32 / 40

32. What type of nutrition do protozoa exhibit?

A. Photosynthetic

B. Holozoic

C. Autotrophic

D. Saprophytic

33 / 40

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

A. Nucleic acids

B. Lipids

C. Carbohydrates

D. Proteins

34 / 40

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

A. Can be used as security for bank loans

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

C. Enables mechanized farming

D. Allows unrestricted improvements on the land

35 / 40

35. Which of the following viruses exhibits icosahedral symmetry?

A. Tobacco mosaic virus

B. Polio virus

C. Rhabdovirus

D. Rabies virus

36 / 40

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

A. Use of organic fertilizers

B. Livestock sector

C. Forestry practices

D. Crop rotation techniques

37 / 40

37. What are viroids primarily composed of?

A. Double-stranded RNA

B. Single-stranded RNA

C. Protein coat and DNA

D. Single-stranded DNA

38 / 40

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

A. Osmoregulation

B. Reproduction

C. Ingestion of food

D. Locomotion

39 / 40

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

A. Demonstrate ancient photosynthetic pathways

B. Indicate volcanic activity

C. Serve as fossilized microbial mats

D. Provide evidence of early atmospheric composition

40 / 40

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

A. Transduction

B. Splicing

C. Budding

D. Fusion

Your score is

The average score is 38%

AGR 201 CBT PRACTICE

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