Oxygenic photosynthesis occurs in:
1. Chromatium
2. Oscillatoria
3. Rhodospirillum
4. Chlorobium
T.O. Diener discovered a:
1. free infectious RNA
2. free infectious DNA
3. infectious protein
4. bacteriophage
1. | Archaea resemble eukarya in all respects. |
2. | Archaea have some novel features that are absent in other prokaryotes and eukaryotes. |
3. | Archaea completely differ from both prokaryotes and eukaryotes. |
4. | Archaea completely differ prokaryotes. |
1. | archaebacteria that contain protein homologous to eukaryotic core histones |
2. | archaebacteria that lack any histones resembling those found in eukaryotes but whose DNA is negatively supercoiled |
3. | bacteria whose DNA is relaxed or positively supercoiled but which have a cytoskeleton as well as mitochondria |
4. | bacteria that contain a cytoskeleton and ribosomes |
Which of the following is a slime mould?
1. Rhizopus
2. Physarum
3. Thiobacillus
4. Anabaena
Ergot of rye is caused by a species of:
1. Phytophthora
2. Uncinula
3. Ustilago
4. Claviceps
Which pair of the following belongs to Basidiomycetes?
1. Bird's nest fungi and Pufballs
2. Puffballs and Claviceps
3. Peziza and Stinkhorns
4. Morchella and Mushrooms
The thalloid body of a slime mould (Myxomycetes) is known as:
1. protonema
2. Plasmodium
3. fruiting body
4. mycelium
The bacterium (Clostridium botulinum) that causes botulism is:
1. a facultative anaerobe
2. an obligate anaerobe
3. a facultative aerobic
4. an obligate aerobic
What is common about Trypanosoma, Noctiluca, Monocystis, and Giardia?
1. These are all unicellular protists
2. They have flagella
3. They produce spores
4. These are all parasites