BCS Written Botany Practice Questions - BCS Written Post-Related Botany, Subject Code 581 Exam - BCS Written Botany Practice Questions - BCS Written Post-Related Botany, Subject Code 581 Exam

Question 1

Tobacco mosaic virus (TMV), the syllabus example of a simple RNA virus, has which genome and capsid architecture?

Positive-sense single-stranded RNA in a rigid helical rod Circular single-stranded RNA with no protein coat Negative-sense segmented RNA in an enveloped spherical particle Double-stranded DNA in an icosahedral head with a contractile tail

Correct Answer:

Positive-sense single-stranded RNA in a rigid helical rod

Question 2

Bacteriophage T2, the syllabus DNA-virus example, infects which host and packages which nucleic acid?

Escherichia coli; linear double-stranded DNA Nicotiana tabacum; positive-sense RNA Bacillus subtilis; single-stranded DNA plasmid Chlorella cells; double-stranded RNA

Correct Answer:

Escherichia coli; linear double-stranded DNA

Question 3

Which pair correctly distinguishes a prion from a viroid?

Prion: infectious protein with no nucleic acid; viroid: circular ssRNA with no capsid Prion: DNA virus of bacteria; viroid: RNA virus of plants Prion: helical RNA virion; viroid: tailed DNA phage Prion: satellite RNA needing a helper virus; viroid: complete enveloped virion

Correct Answer:

Prion: infectious protein with no nucleic acid; viroid: circular ssRNA with no capsid

Question 4

Photosynthesis in purple and green sulphur bacteria is typically:

Anoxygenic, using bacteriochlorophyll and electron donors such as H2S rather than water Identical to the C4 Hatch–Slack pathway of maize leaves Restricted to nitrogenase in heterocysts Oxygenic, using water as the electron donor and chlorophyll a only

Correct Answer:

Anoxygenic, using bacteriochlorophyll and electron donors such as H2S rather than water

Question 5

In bacteria, transformation is best defined as:

Uptake of naked DNA from the environment by a competent cell Direct cell-to-cell transfer of a conjugative plasmid through a pilus Fusion of two protoplasts to form a somatic hybrid Gene transfer by a bacteriophage packaging bacterial DNA

Correct Answer:

Uptake of naked DNA from the environment by a competent cell

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Prepare with the BCS Written Botany Practice Questions - BCS Written Post-Related Botany, Subject Code 581 Exam practice quiz. This question bank includes 100 questions covering correctly, classification, caused, plant, and mainly. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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BCS Written Botany Practice Questions - BCS Written Post-Related Botany, Subject Code 581 Exam

This practice set contains 100 questions from the matching question bank and focuses on correctly, classification, caused, plant, and mainly. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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BCS Written Botany Practice Questions - BCS Written Post-Related Botany, Subject Code 581 Exam

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