1 Plasmids of cyanobacteria have been used in biotechnology
2 DNA of cyanobacteria is circular and doublestranded
3 Cyanobacteria possess single linkage group
4 Like bacteria, they also exhibit genetic recombination
Explanation:
Plasmids are usually circular molecules of DNA, although occasionally plasmid that are linear or made of RNA exist. - Plasmid can duplicate independent of the genome. - Plasmids are useful in cloning short segment of DNA. - Plasmid can be used to replicate proteins.
Manipal-2011
Biological Classification
258464
Which of the following organisms completely lack cell wall, they are the smallest living cells known and can survive without oxygen?
1 Mycoplasma
2 Euglenoids
3 Slime moulds
4 All of these
Explanation:
Mycoplasma are the smallest and simplest self-replicating bacteria. - Mycoplasma cell contains the minimum set of organelles essential for growth and replication a plasmamembrane ribosomes and a genome consisting of a double stranded circular DNA molecule. - Mycoplasma can survive without oxygen.
AFMC -2009
Biological Classification
258465
Which of the following statement is correct?
1 All bacteria are heterotrophic
2 Bacteria are either heterotrophic chemoautotrophic
3 Bacteria can also be photoautotrophic
4 Bacteria are either photoautotrophic chemoautotrophic
Explanation:
A photosynthetic organism that utilizes energy from light to synthesize organic molecule such as a green plant or a Cyanobacterium. - Photoautotrophs are organisms that carry out photosynthesis, using energy from sunlight, carbon dioxide and water are converted into organic materials to be used in cellular functions such as biosynthesis and respiration.
DUMET-2010
Biological Classification
258466
Which one of the following does not belong to kingdom-Monera?
1 Mycoplasma
2 Archaebacteria
3 Slime mould
4 Eubacteria
Explanation:
Slime mould organisms that exist as slimy masses and are commonly found on decaying plant matter. - Slime mould are saprophytic and lack chlorophyll. - They are classified among the Protista as two distinct phyla. Dictyosteliomycota (the cellular slime mould) and Myxomycota (the plasmodial slime mould).
DUMET-2008
Biological Classification
258467
Which of the following is symbiotic bacteria?
1 Rhizobium
2 Azotobactor
3 Clostridium
4 Streptomyces
Explanation:
Rhizobium is a genus of Gram - negative soil bacteria that fix - nitrogen. - It forms an endosymbiotic nitrogen fixing associated with roots of legumes. - They take nitrogen from the atmosphere and pass it, on to plant allowing it to grow in soil low in nitrogen.
1 Plasmids of cyanobacteria have been used in biotechnology
2 DNA of cyanobacteria is circular and doublestranded
3 Cyanobacteria possess single linkage group
4 Like bacteria, they also exhibit genetic recombination
Explanation:
Plasmids are usually circular molecules of DNA, although occasionally plasmid that are linear or made of RNA exist. - Plasmid can duplicate independent of the genome. - Plasmids are useful in cloning short segment of DNA. - Plasmid can be used to replicate proteins.
Manipal-2011
Biological Classification
258464
Which of the following organisms completely lack cell wall, they are the smallest living cells known and can survive without oxygen?
1 Mycoplasma
2 Euglenoids
3 Slime moulds
4 All of these
Explanation:
Mycoplasma are the smallest and simplest self-replicating bacteria. - Mycoplasma cell contains the minimum set of organelles essential for growth and replication a plasmamembrane ribosomes and a genome consisting of a double stranded circular DNA molecule. - Mycoplasma can survive without oxygen.
AFMC -2009
Biological Classification
258465
Which of the following statement is correct?
1 All bacteria are heterotrophic
2 Bacteria are either heterotrophic chemoautotrophic
3 Bacteria can also be photoautotrophic
4 Bacteria are either photoautotrophic chemoautotrophic
Explanation:
A photosynthetic organism that utilizes energy from light to synthesize organic molecule such as a green plant or a Cyanobacterium. - Photoautotrophs are organisms that carry out photosynthesis, using energy from sunlight, carbon dioxide and water are converted into organic materials to be used in cellular functions such as biosynthesis and respiration.
DUMET-2010
Biological Classification
258466
Which one of the following does not belong to kingdom-Monera?
1 Mycoplasma
2 Archaebacteria
3 Slime mould
4 Eubacteria
Explanation:
Slime mould organisms that exist as slimy masses and are commonly found on decaying plant matter. - Slime mould are saprophytic and lack chlorophyll. - They are classified among the Protista as two distinct phyla. Dictyosteliomycota (the cellular slime mould) and Myxomycota (the plasmodial slime mould).
DUMET-2008
Biological Classification
258467
Which of the following is symbiotic bacteria?
1 Rhizobium
2 Azotobactor
3 Clostridium
4 Streptomyces
Explanation:
Rhizobium is a genus of Gram - negative soil bacteria that fix - nitrogen. - It forms an endosymbiotic nitrogen fixing associated with roots of legumes. - They take nitrogen from the atmosphere and pass it, on to plant allowing it to grow in soil low in nitrogen.
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Biological Classification
258463
Which is a wrong statement?
1 Plasmids of cyanobacteria have been used in biotechnology
2 DNA of cyanobacteria is circular and doublestranded
3 Cyanobacteria possess single linkage group
4 Like bacteria, they also exhibit genetic recombination
Explanation:
Plasmids are usually circular molecules of DNA, although occasionally plasmid that are linear or made of RNA exist. - Plasmid can duplicate independent of the genome. - Plasmids are useful in cloning short segment of DNA. - Plasmid can be used to replicate proteins.
Manipal-2011
Biological Classification
258464
Which of the following organisms completely lack cell wall, they are the smallest living cells known and can survive without oxygen?
1 Mycoplasma
2 Euglenoids
3 Slime moulds
4 All of these
Explanation:
Mycoplasma are the smallest and simplest self-replicating bacteria. - Mycoplasma cell contains the minimum set of organelles essential for growth and replication a plasmamembrane ribosomes and a genome consisting of a double stranded circular DNA molecule. - Mycoplasma can survive without oxygen.
AFMC -2009
Biological Classification
258465
Which of the following statement is correct?
1 All bacteria are heterotrophic
2 Bacteria are either heterotrophic chemoautotrophic
3 Bacteria can also be photoautotrophic
4 Bacteria are either photoautotrophic chemoautotrophic
Explanation:
A photosynthetic organism that utilizes energy from light to synthesize organic molecule such as a green plant or a Cyanobacterium. - Photoautotrophs are organisms that carry out photosynthesis, using energy from sunlight, carbon dioxide and water are converted into organic materials to be used in cellular functions such as biosynthesis and respiration.
DUMET-2010
Biological Classification
258466
Which one of the following does not belong to kingdom-Monera?
1 Mycoplasma
2 Archaebacteria
3 Slime mould
4 Eubacteria
Explanation:
Slime mould organisms that exist as slimy masses and are commonly found on decaying plant matter. - Slime mould are saprophytic and lack chlorophyll. - They are classified among the Protista as two distinct phyla. Dictyosteliomycota (the cellular slime mould) and Myxomycota (the plasmodial slime mould).
DUMET-2008
Biological Classification
258467
Which of the following is symbiotic bacteria?
1 Rhizobium
2 Azotobactor
3 Clostridium
4 Streptomyces
Explanation:
Rhizobium is a genus of Gram - negative soil bacteria that fix - nitrogen. - It forms an endosymbiotic nitrogen fixing associated with roots of legumes. - They take nitrogen from the atmosphere and pass it, on to plant allowing it to grow in soil low in nitrogen.
1 Plasmids of cyanobacteria have been used in biotechnology
2 DNA of cyanobacteria is circular and doublestranded
3 Cyanobacteria possess single linkage group
4 Like bacteria, they also exhibit genetic recombination
Explanation:
Plasmids are usually circular molecules of DNA, although occasionally plasmid that are linear or made of RNA exist. - Plasmid can duplicate independent of the genome. - Plasmids are useful in cloning short segment of DNA. - Plasmid can be used to replicate proteins.
Manipal-2011
Biological Classification
258464
Which of the following organisms completely lack cell wall, they are the smallest living cells known and can survive without oxygen?
1 Mycoplasma
2 Euglenoids
3 Slime moulds
4 All of these
Explanation:
Mycoplasma are the smallest and simplest self-replicating bacteria. - Mycoplasma cell contains the minimum set of organelles essential for growth and replication a plasmamembrane ribosomes and a genome consisting of a double stranded circular DNA molecule. - Mycoplasma can survive without oxygen.
AFMC -2009
Biological Classification
258465
Which of the following statement is correct?
1 All bacteria are heterotrophic
2 Bacteria are either heterotrophic chemoautotrophic
3 Bacteria can also be photoautotrophic
4 Bacteria are either photoautotrophic chemoautotrophic
Explanation:
A photosynthetic organism that utilizes energy from light to synthesize organic molecule such as a green plant or a Cyanobacterium. - Photoautotrophs are organisms that carry out photosynthesis, using energy from sunlight, carbon dioxide and water are converted into organic materials to be used in cellular functions such as biosynthesis and respiration.
DUMET-2010
Biological Classification
258466
Which one of the following does not belong to kingdom-Monera?
1 Mycoplasma
2 Archaebacteria
3 Slime mould
4 Eubacteria
Explanation:
Slime mould organisms that exist as slimy masses and are commonly found on decaying plant matter. - Slime mould are saprophytic and lack chlorophyll. - They are classified among the Protista as two distinct phyla. Dictyosteliomycota (the cellular slime mould) and Myxomycota (the plasmodial slime mould).
DUMET-2008
Biological Classification
258467
Which of the following is symbiotic bacteria?
1 Rhizobium
2 Azotobactor
3 Clostridium
4 Streptomyces
Explanation:
Rhizobium is a genus of Gram - negative soil bacteria that fix - nitrogen. - It forms an endosymbiotic nitrogen fixing associated with roots of legumes. - They take nitrogen from the atmosphere and pass it, on to plant allowing it to grow in soil low in nitrogen.
1 Plasmids of cyanobacteria have been used in biotechnology
2 DNA of cyanobacteria is circular and doublestranded
3 Cyanobacteria possess single linkage group
4 Like bacteria, they also exhibit genetic recombination
Explanation:
Plasmids are usually circular molecules of DNA, although occasionally plasmid that are linear or made of RNA exist. - Plasmid can duplicate independent of the genome. - Plasmids are useful in cloning short segment of DNA. - Plasmid can be used to replicate proteins.
Manipal-2011
Biological Classification
258464
Which of the following organisms completely lack cell wall, they are the smallest living cells known and can survive without oxygen?
1 Mycoplasma
2 Euglenoids
3 Slime moulds
4 All of these
Explanation:
Mycoplasma are the smallest and simplest self-replicating bacteria. - Mycoplasma cell contains the minimum set of organelles essential for growth and replication a plasmamembrane ribosomes and a genome consisting of a double stranded circular DNA molecule. - Mycoplasma can survive without oxygen.
AFMC -2009
Biological Classification
258465
Which of the following statement is correct?
1 All bacteria are heterotrophic
2 Bacteria are either heterotrophic chemoautotrophic
3 Bacteria can also be photoautotrophic
4 Bacteria are either photoautotrophic chemoautotrophic
Explanation:
A photosynthetic organism that utilizes energy from light to synthesize organic molecule such as a green plant or a Cyanobacterium. - Photoautotrophs are organisms that carry out photosynthesis, using energy from sunlight, carbon dioxide and water are converted into organic materials to be used in cellular functions such as biosynthesis and respiration.
DUMET-2010
Biological Classification
258466
Which one of the following does not belong to kingdom-Monera?
1 Mycoplasma
2 Archaebacteria
3 Slime mould
4 Eubacteria
Explanation:
Slime mould organisms that exist as slimy masses and are commonly found on decaying plant matter. - Slime mould are saprophytic and lack chlorophyll. - They are classified among the Protista as two distinct phyla. Dictyosteliomycota (the cellular slime mould) and Myxomycota (the plasmodial slime mould).
DUMET-2008
Biological Classification
258467
Which of the following is symbiotic bacteria?
1 Rhizobium
2 Azotobactor
3 Clostridium
4 Streptomyces
Explanation:
Rhizobium is a genus of Gram - negative soil bacteria that fix - nitrogen. - It forms an endosymbiotic nitrogen fixing associated with roots of legumes. - They take nitrogen from the atmosphere and pass it, on to plant allowing it to grow in soil low in nitrogen.