question Which of the following is a viral vector used in genetic engineering

What is the primary role of the Koch's postulates in microbiology?

A. Establishing the causative agent of a disease
B. Classifying microorganisms
C. Identifying antibiotic resistance
D. Describing microbial morphology

What is the primary function of the nucleoid in bacterial cells?

A. Contains the bacterial chromosome
B. Synthesizes cellular ATP
C. Initiates DNA replication
D. Facilitates protein synthesis

What is the primary function of the nucleolus in eukaryotic microbial cells?

A. Synthesis of ribosomal RNA
B. Synthesis of proteins
C. DNA replication
D. Cell wall formation

Which microorganism is responsible for the production of citric acid?

A. Aspergillus niger
B. Streptococcus pyogenes
C. Mycobacterium leprae
D. Candida albicans

What is the primary function of the capsule in bacterial cells?

A. Protection from immune defenses
B. Nutrient absorption
C. Facilitates cell division
D. Enhances cellular respiration

What is the primary function of the capsule in bacterial cells?

A. Protection from immune defenses
B. Nutrient absorption
C. Facilitates cell division
D. Enhances cellular respiration

What is the primary function of the endocytosis in eukaryotic microbial cells?

A. Cellular uptake of substances
B. Synthesis of proteins
C. DNA replication
D. Cell wall formation

Which of the following is a viral disease in humans?

A. Influenza
B. Tuberculosis
C. Cholera
D. Malaria

What is the primary function of the pilus in bacterial cells?

A. Facilitates bacterial conjugation
B. Nutrient absorption
C. Cellular respiration
D. Synthesis of enzymes

What is the primary role of microorganisms in the sulfur cycle?

A. Conversion of sulfur between different forms
B. Nitrogen fixation
C. Photosynthesis
D. Cellular respiration

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