Nostoc and Anabaena are blue green algae. These are commonly found in the coralloid root of Cycas but other Nostocales can also be found. They have the necessory characteristics to infect the roots and to develop and maintain a symbiotic relationship with the Cycas. - Coralloid root systems form near the surface of the soil where they are not hidden from light.
JIPMER-2003
Biological Classification
258438
Which one of the following bacteria has found extensive use in genetic engineering work in plants?
1 Bacillus coagulens
2 Agrobacterium tumefaciens
3 Clostridium septicum
4 Xanthomonas citri
Explanation:
Agrobacterium tumifaciens is a soil bacterium that is transferred to the plants through the wounded region and causes gall tumors in plants. This bacterium contains a plasmid $\mathrm{Ti}$ plasmid or tumor inducing plasmid. - It is popular in genetic engineering because this bacterium is associated with the roots of the all cereal and pulse crops.
MGIMS Wardha-2010
Biological Classification
258439
In which kingdom, would you classify the archaea and nitrogen-fixing organisms. If the five-kingdom system of classification is used?
1 Protista
2 Monera
3 Plantae
4 Fungi
Explanation:
Archaea and nitrogen fixing bacteria or organisms are prokaryotic in nature. Hence, they can be placed in the kingdom monera. - Monera includes eubacteria and archaea. They include non-nucleated unicellular organisms. They are prokaryotics. They have a cell wall. They have no membrane bound organelles and true nucleus.
MGIMS Wardha-2010 CGPMT-2007
Biological Classification
258440
Chromosomes in bacterial cell can be 1 to 3 in
1 number and can be either circular or Linear, but never both within the same cell
2 can be circular as well as linear within the same cell
3 are always circular
4 are always linear
Explanation:
Bacterial chromosome is called nucleiod. It is an irregularly shaped and contains genetic material. Bacterial cell usually have one circular chromosome of a few metabase in size. - They often have plasmids whose size range from a few to one hundred or kilobases. - Bacteria possess a single circular chromosome comprised of double stranded DNA molecule.
Nostoc and Anabaena are blue green algae. These are commonly found in the coralloid root of Cycas but other Nostocales can also be found. They have the necessory characteristics to infect the roots and to develop and maintain a symbiotic relationship with the Cycas. - Coralloid root systems form near the surface of the soil where they are not hidden from light.
JIPMER-2003
Biological Classification
258438
Which one of the following bacteria has found extensive use in genetic engineering work in plants?
1 Bacillus coagulens
2 Agrobacterium tumefaciens
3 Clostridium septicum
4 Xanthomonas citri
Explanation:
Agrobacterium tumifaciens is a soil bacterium that is transferred to the plants through the wounded region and causes gall tumors in plants. This bacterium contains a plasmid $\mathrm{Ti}$ plasmid or tumor inducing plasmid. - It is popular in genetic engineering because this bacterium is associated with the roots of the all cereal and pulse crops.
MGIMS Wardha-2010
Biological Classification
258439
In which kingdom, would you classify the archaea and nitrogen-fixing organisms. If the five-kingdom system of classification is used?
1 Protista
2 Monera
3 Plantae
4 Fungi
Explanation:
Archaea and nitrogen fixing bacteria or organisms are prokaryotic in nature. Hence, they can be placed in the kingdom monera. - Monera includes eubacteria and archaea. They include non-nucleated unicellular organisms. They are prokaryotics. They have a cell wall. They have no membrane bound organelles and true nucleus.
MGIMS Wardha-2010 CGPMT-2007
Biological Classification
258440
Chromosomes in bacterial cell can be 1 to 3 in
1 number and can be either circular or Linear, but never both within the same cell
2 can be circular as well as linear within the same cell
3 are always circular
4 are always linear
Explanation:
Bacterial chromosome is called nucleiod. It is an irregularly shaped and contains genetic material. Bacterial cell usually have one circular chromosome of a few metabase in size. - They often have plasmids whose size range from a few to one hundred or kilobases. - Bacteria possess a single circular chromosome comprised of double stranded DNA molecule.
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Biological Classification
258477
Blue-green algae is found in :
1 Cycas
2 Pinus
3 Scales of Marchantia
4 Riccia
Explanation:
Nostoc and Anabaena are blue green algae. These are commonly found in the coralloid root of Cycas but other Nostocales can also be found. They have the necessory characteristics to infect the roots and to develop and maintain a symbiotic relationship with the Cycas. - Coralloid root systems form near the surface of the soil where they are not hidden from light.
JIPMER-2003
Biological Classification
258438
Which one of the following bacteria has found extensive use in genetic engineering work in plants?
1 Bacillus coagulens
2 Agrobacterium tumefaciens
3 Clostridium septicum
4 Xanthomonas citri
Explanation:
Agrobacterium tumifaciens is a soil bacterium that is transferred to the plants through the wounded region and causes gall tumors in plants. This bacterium contains a plasmid $\mathrm{Ti}$ plasmid or tumor inducing plasmid. - It is popular in genetic engineering because this bacterium is associated with the roots of the all cereal and pulse crops.
MGIMS Wardha-2010
Biological Classification
258439
In which kingdom, would you classify the archaea and nitrogen-fixing organisms. If the five-kingdom system of classification is used?
1 Protista
2 Monera
3 Plantae
4 Fungi
Explanation:
Archaea and nitrogen fixing bacteria or organisms are prokaryotic in nature. Hence, they can be placed in the kingdom monera. - Monera includes eubacteria and archaea. They include non-nucleated unicellular organisms. They are prokaryotics. They have a cell wall. They have no membrane bound organelles and true nucleus.
MGIMS Wardha-2010 CGPMT-2007
Biological Classification
258440
Chromosomes in bacterial cell can be 1 to 3 in
1 number and can be either circular or Linear, but never both within the same cell
2 can be circular as well as linear within the same cell
3 are always circular
4 are always linear
Explanation:
Bacterial chromosome is called nucleiod. It is an irregularly shaped and contains genetic material. Bacterial cell usually have one circular chromosome of a few metabase in size. - They often have plasmids whose size range from a few to one hundred or kilobases. - Bacteria possess a single circular chromosome comprised of double stranded DNA molecule.
Nostoc and Anabaena are blue green algae. These are commonly found in the coralloid root of Cycas but other Nostocales can also be found. They have the necessory characteristics to infect the roots and to develop and maintain a symbiotic relationship with the Cycas. - Coralloid root systems form near the surface of the soil where they are not hidden from light.
JIPMER-2003
Biological Classification
258438
Which one of the following bacteria has found extensive use in genetic engineering work in plants?
1 Bacillus coagulens
2 Agrobacterium tumefaciens
3 Clostridium septicum
4 Xanthomonas citri
Explanation:
Agrobacterium tumifaciens is a soil bacterium that is transferred to the plants through the wounded region and causes gall tumors in plants. This bacterium contains a plasmid $\mathrm{Ti}$ plasmid or tumor inducing plasmid. - It is popular in genetic engineering because this bacterium is associated with the roots of the all cereal and pulse crops.
MGIMS Wardha-2010
Biological Classification
258439
In which kingdom, would you classify the archaea and nitrogen-fixing organisms. If the five-kingdom system of classification is used?
1 Protista
2 Monera
3 Plantae
4 Fungi
Explanation:
Archaea and nitrogen fixing bacteria or organisms are prokaryotic in nature. Hence, they can be placed in the kingdom monera. - Monera includes eubacteria and archaea. They include non-nucleated unicellular organisms. They are prokaryotics. They have a cell wall. They have no membrane bound organelles and true nucleus.
MGIMS Wardha-2010 CGPMT-2007
Biological Classification
258440
Chromosomes in bacterial cell can be 1 to 3 in
1 number and can be either circular or Linear, but never both within the same cell
2 can be circular as well as linear within the same cell
3 are always circular
4 are always linear
Explanation:
Bacterial chromosome is called nucleiod. It is an irregularly shaped and contains genetic material. Bacterial cell usually have one circular chromosome of a few metabase in size. - They often have plasmids whose size range from a few to one hundred or kilobases. - Bacteria possess a single circular chromosome comprised of double stranded DNA molecule.