1. are small, microscopic which are not seen with naked eye
2. because serious disease to human being, domesticated animals and crop plants.
3. produce endospores which are very resistant to adverse conditions.
4. possess incipient nucleus and show amitotic division
possess incipient nucleus and show amitotic division
1. capsule vegetative cell
2. newly divided cell
3. endospore stage
4. torula stage
endospore stage
1. Measles, mumps, malaria
2. Tetanus, typhoid, tuberculosis
3. Small pox, sleeping sickness
4. Poliomyelitis, Psittacosis
Tetanus, typhoid, tuberculosis
1. Vibrio comma
2. Escherichia coli
3. Streptococus lactis
4. Pseudomonas citri
Escherichia coli
1. exotoxin
2. bactericide
3. antibody
4. antibiotic
antibiotic
1. rigid cell wall
2. ability to reproduce
3. both the above
4. None of the above
rigid cell wall
1. Observation, formulation of hypothesis, testing of hypothesis, developing theory
2. Formulation of hypothesis, testing of hypothesis, developing theory
3. Observation, testing of hypothesis, formulation of hypothesis, developing theory
4. Developing theory, observation, formulation of hypothesis and testing of hypothesis
Formulation of hypothesis, testing of hypothesis, developing theory
1. bacteriophage transfers DNA from donor to recipient cell
2. extracellular DNA enters the recipient cell
3. the donor cell survives
4. the donor and recipient cells survive
bacteriophage transfers DNA from donor to recipient cell
1. A hypothesis is tentative theory
2. Hypothesis is an intelligent guess
3. Control experiment establishes the validity of working experiment
4. All of above
All of above
1. thick and homogeneous cell walls
2. as much as 70% peptide molecules
3. either no lipids or less than 10% lipids
4. All the above
All the above