Physiological Evidence

Q.

Appearance of antibiotic resistant bacteria is an example of:

1. Adaptive radiation

2. Transduction

3. Pre-existing variation in the population

4. Divergent evolution

Q. Presence of gills in the tadpole of frog indicates that :

1. Fishes evolved from frog like ancestors
2. Frogs will have gills in future
3. Frogs evolved from gilled ancestors
4. Fishes were amphibious in the past.

Q. Using imprints from a plate with complete medium and carrying bacterial colonies, you can select streptomycin resistant mutants and prove that such mutations do not originate as an adaptation. These imprints need to be used

1. On plates with and without streptomycin
2. On plates with minimal medium
3. Only on plates without streptomycin
4. Only on plates with streptomycin

Q.

What are the two ways that bacteria can acquire antibiotic resistance?

Q.

What does the below diagram explain?

1. A unique feature transferred which leads to resistant bacteria

2. Both A and C

3. A unique feature that helps certain bacteria thrive

4. A unique feature transferred which leads to non-resistant bacteria

Q. Blood transfusion among which of the following organisms serves as physiological evidence of evolution?

1. Only iii)
2. Only i)
3. Both i) and ii)
4. None of the above

Q. Bacteria can evolve to exhibit resistance to an antibiotic.

1. False
2. True

Q. Blood transfusion occurs more smoothly between the unrelated species than the closely related species.

1. True
2. False

Q. Blood transfusion occurs more smoothly between the unrelated species than the closely related species.

1. True
2. False

Q.

The study of inheritance and variation is termed __.

1. Physiology

2. Genetics

3. Evolution

4. Metabolism

Q. Assertion :The term 'cross-protection' is used specifically for the protection of a plant by preinfecting the host with a mild strain of the pathogens. Reason: Breakdown of resistant genes in plants is responsible for the occurrence of disease in a previously resistant variety of a crop.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
3. Assertion is correct but Reason is incorrect.
4. Assertion is incorrect but Reason is correct.

Q. Presence of gills in tadpole of frog indicates that

1. Frog evolved from gilled ancestors.
2. Frog will have gills in future.
3. Fishes evolved from frog-like ancestors.
4. Fishes were amphibians in the past.

Q. Using imprints from a plate with complete medium and carrying bacterial colonies, you can select streptomycin resistant mutants and prove that such mutations do not originate as adaption. These imprints need to be used?

1. On plates with an without streptomycin
2. On plants with minimal medium
3. Only on plates with streptomycin
4. Only on plates without streptomycin