Q. No.Thermococcus, Methanococcus and Methanobacterium exemplify
1. Bacteria whose DNA is relaxed or positively supercoiled but which have a cytoskeleton as well as mitochondria
2. Bacteria that contain a cytoskeleton and ribosomes
3. Archaebacteria that contain protein homologous to eukaryotic core histones
4. Archaebacteria that lack any histones resembling those found in eukaryotes but whose DNA is negatively supercoiled
1. Bacteria whose DNA is relaxed or positively supercoiled but which have a cytoskeleton as well as mitochondria
2. Bacteria that contain a cytoskeleton and ribosomes
3. Archaebacteria that contain protein homologous to eukaryotic core histones
4. Archaebacteria that lack any histones resembling those found in eukaryotes but whose DNA is negatively supercoiled
Phylogenetic system of classification is based on
1. Floral Characters
2. Evolutionary relationships
3. Morphological features
4. Chemical constituents
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Semiconservative replication of DNA was first demonstrated in
1. Salmonella typhimurium
2. Drosophila melanogaster
3. Escherichia coli
4. Streptococcus pneumoniae
The common nitrogen-fixer in paddy fields is
1. Azospirillum
2. Oscillatoria
3. Frankia
4. Rhizobium
Membrane-bound organelles are absent in
1. Streptococcus
2. Chlamydomonas
3. Plasmodium
4. Saccharomyces
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A prokaryotic autotrophic nitrogen fixing symbiont is found in :
1. Alnus
2. Cycas
3. Cicer
4. Pisum
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The Cyanobacteria are also referred to as
1. Protists
2. Golden algae
3. Slime moulds
4. Blue green algae
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Maximum nutritional diversity is found in which of the following group?
| 1. | Fungi | 2. | Animalia |
| 3. | Monera | 4. | Plantae |
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