Black rot is caused by a bacteria Xanthomonas campestris that can infect most crucifer crops at any growth stage. - This bacteria can infect any plant in the Brassica family.
AMU-2012
Biological Classification
258502
All are true about bacterial endospores except
1 sporulation in bacteria is a method of reproduction
2 spores of all the medically important bacteria are killed by autoclaving at $121^{\circ} \mathrm{C}$ for 15 minutes
3 spores can be stained by modified ZiehlNeelsen technique
4 bacterial spores help them to survive under favourable conditions
Explanation:
The cells of the bacteria, plant or fungi which are created when an organism encounter harsh conditions are called spores. These spores have a thick cell wall which helps them to with stand harsh conditions. They preserve the organisms genetic material and resume multiplying once favourable conditions are available. The formation of these spores is known as sporulation.
BHU PMT (Screening)-2011
Biological Classification
258503
E. coli lives in human intestine and cause
1 urinary tract infection in infants only
2 diarrhoea only adults
3 meningitis
4 None of the above
Explanation:
Escherichia coli is a gram-negative, facultative anaerobic, rod- shaped coliform bacterium of the genus Escherichia that is commonly found in the intestine of warm blooded organisms. - They live naturally in intestinal tract and helps in digestion of food.
BHU PMT (Screening)-2011
Biological Classification
258504
Many bacteria are now resistant to penicillin because
1 penicillin cause gene mutations
2 previously resistant forms survived and reproduced better than non-resistant forms
3 hospital environment inhibits competition among bacteria
4 penicillin triggers the synthesis of resistant proteins
Explanation:
Penicillins are used to treat infections caused by bacteria. They work by killing the bacteria or preventing their growth. So bacteria with resistant gene from penicillin transferred character to offspring. - Some bacteria have developed resistance to antibiotics that were once commonly used to treat them.
BHU PMT (Screening)-2011
Biological Classification
258505
A bacterium is capable of withstanding extreme heat, dryness and toxic chemical. This indicates that it is probably able to form
1 a thick peptidoglycan wall
2 endospores
3 endotoxins
4 endogenous buds
Explanation:
Bacterial endospores are simplified form of bacteria consisting of the DNA genome, Bacillus and the Clostridium are the main two genera of bacteria that form endospores. - The endospore are formed in response to unfavourable growth conditions in the bacterial environment most commonly induced by the limitaion of nutrients.
Black rot is caused by a bacteria Xanthomonas campestris that can infect most crucifer crops at any growth stage. - This bacteria can infect any plant in the Brassica family.
AMU-2012
Biological Classification
258502
All are true about bacterial endospores except
1 sporulation in bacteria is a method of reproduction
2 spores of all the medically important bacteria are killed by autoclaving at $121^{\circ} \mathrm{C}$ for 15 minutes
3 spores can be stained by modified ZiehlNeelsen technique
4 bacterial spores help them to survive under favourable conditions
Explanation:
The cells of the bacteria, plant or fungi which are created when an organism encounter harsh conditions are called spores. These spores have a thick cell wall which helps them to with stand harsh conditions. They preserve the organisms genetic material and resume multiplying once favourable conditions are available. The formation of these spores is known as sporulation.
BHU PMT (Screening)-2011
Biological Classification
258503
E. coli lives in human intestine and cause
1 urinary tract infection in infants only
2 diarrhoea only adults
3 meningitis
4 None of the above
Explanation:
Escherichia coli is a gram-negative, facultative anaerobic, rod- shaped coliform bacterium of the genus Escherichia that is commonly found in the intestine of warm blooded organisms. - They live naturally in intestinal tract and helps in digestion of food.
BHU PMT (Screening)-2011
Biological Classification
258504
Many bacteria are now resistant to penicillin because
1 penicillin cause gene mutations
2 previously resistant forms survived and reproduced better than non-resistant forms
3 hospital environment inhibits competition among bacteria
4 penicillin triggers the synthesis of resistant proteins
Explanation:
Penicillins are used to treat infections caused by bacteria. They work by killing the bacteria or preventing their growth. So bacteria with resistant gene from penicillin transferred character to offspring. - Some bacteria have developed resistance to antibiotics that were once commonly used to treat them.
BHU PMT (Screening)-2011
Biological Classification
258505
A bacterium is capable of withstanding extreme heat, dryness and toxic chemical. This indicates that it is probably able to form
1 a thick peptidoglycan wall
2 endospores
3 endotoxins
4 endogenous buds
Explanation:
Bacterial endospores are simplified form of bacteria consisting of the DNA genome, Bacillus and the Clostridium are the main two genera of bacteria that form endospores. - The endospore are formed in response to unfavourable growth conditions in the bacterial environment most commonly induced by the limitaion of nutrients.
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Biological Classification
258501
Black rot of crucifers is caused by a
1 fungus
2 bacterium
3 virus
4 None of these
Explanation:
Black rot is caused by a bacteria Xanthomonas campestris that can infect most crucifer crops at any growth stage. - This bacteria can infect any plant in the Brassica family.
AMU-2012
Biological Classification
258502
All are true about bacterial endospores except
1 sporulation in bacteria is a method of reproduction
2 spores of all the medically important bacteria are killed by autoclaving at $121^{\circ} \mathrm{C}$ for 15 minutes
3 spores can be stained by modified ZiehlNeelsen technique
4 bacterial spores help them to survive under favourable conditions
Explanation:
The cells of the bacteria, plant or fungi which are created when an organism encounter harsh conditions are called spores. These spores have a thick cell wall which helps them to with stand harsh conditions. They preserve the organisms genetic material and resume multiplying once favourable conditions are available. The formation of these spores is known as sporulation.
BHU PMT (Screening)-2011
Biological Classification
258503
E. coli lives in human intestine and cause
1 urinary tract infection in infants only
2 diarrhoea only adults
3 meningitis
4 None of the above
Explanation:
Escherichia coli is a gram-negative, facultative anaerobic, rod- shaped coliform bacterium of the genus Escherichia that is commonly found in the intestine of warm blooded organisms. - They live naturally in intestinal tract and helps in digestion of food.
BHU PMT (Screening)-2011
Biological Classification
258504
Many bacteria are now resistant to penicillin because
1 penicillin cause gene mutations
2 previously resistant forms survived and reproduced better than non-resistant forms
3 hospital environment inhibits competition among bacteria
4 penicillin triggers the synthesis of resistant proteins
Explanation:
Penicillins are used to treat infections caused by bacteria. They work by killing the bacteria or preventing their growth. So bacteria with resistant gene from penicillin transferred character to offspring. - Some bacteria have developed resistance to antibiotics that were once commonly used to treat them.
BHU PMT (Screening)-2011
Biological Classification
258505
A bacterium is capable of withstanding extreme heat, dryness and toxic chemical. This indicates that it is probably able to form
1 a thick peptidoglycan wall
2 endospores
3 endotoxins
4 endogenous buds
Explanation:
Bacterial endospores are simplified form of bacteria consisting of the DNA genome, Bacillus and the Clostridium are the main two genera of bacteria that form endospores. - The endospore are formed in response to unfavourable growth conditions in the bacterial environment most commonly induced by the limitaion of nutrients.
Black rot is caused by a bacteria Xanthomonas campestris that can infect most crucifer crops at any growth stage. - This bacteria can infect any plant in the Brassica family.
AMU-2012
Biological Classification
258502
All are true about bacterial endospores except
1 sporulation in bacteria is a method of reproduction
2 spores of all the medically important bacteria are killed by autoclaving at $121^{\circ} \mathrm{C}$ for 15 minutes
3 spores can be stained by modified ZiehlNeelsen technique
4 bacterial spores help them to survive under favourable conditions
Explanation:
The cells of the bacteria, plant or fungi which are created when an organism encounter harsh conditions are called spores. These spores have a thick cell wall which helps them to with stand harsh conditions. They preserve the organisms genetic material and resume multiplying once favourable conditions are available. The formation of these spores is known as sporulation.
BHU PMT (Screening)-2011
Biological Classification
258503
E. coli lives in human intestine and cause
1 urinary tract infection in infants only
2 diarrhoea only adults
3 meningitis
4 None of the above
Explanation:
Escherichia coli is a gram-negative, facultative anaerobic, rod- shaped coliform bacterium of the genus Escherichia that is commonly found in the intestine of warm blooded organisms. - They live naturally in intestinal tract and helps in digestion of food.
BHU PMT (Screening)-2011
Biological Classification
258504
Many bacteria are now resistant to penicillin because
1 penicillin cause gene mutations
2 previously resistant forms survived and reproduced better than non-resistant forms
3 hospital environment inhibits competition among bacteria
4 penicillin triggers the synthesis of resistant proteins
Explanation:
Penicillins are used to treat infections caused by bacteria. They work by killing the bacteria or preventing their growth. So bacteria with resistant gene from penicillin transferred character to offspring. - Some bacteria have developed resistance to antibiotics that were once commonly used to treat them.
BHU PMT (Screening)-2011
Biological Classification
258505
A bacterium is capable of withstanding extreme heat, dryness and toxic chemical. This indicates that it is probably able to form
1 a thick peptidoglycan wall
2 endospores
3 endotoxins
4 endogenous buds
Explanation:
Bacterial endospores are simplified form of bacteria consisting of the DNA genome, Bacillus and the Clostridium are the main two genera of bacteria that form endospores. - The endospore are formed in response to unfavourable growth conditions in the bacterial environment most commonly induced by the limitaion of nutrients.
Black rot is caused by a bacteria Xanthomonas campestris that can infect most crucifer crops at any growth stage. - This bacteria can infect any plant in the Brassica family.
AMU-2012
Biological Classification
258502
All are true about bacterial endospores except
1 sporulation in bacteria is a method of reproduction
2 spores of all the medically important bacteria are killed by autoclaving at $121^{\circ} \mathrm{C}$ for 15 minutes
3 spores can be stained by modified ZiehlNeelsen technique
4 bacterial spores help them to survive under favourable conditions
Explanation:
The cells of the bacteria, plant or fungi which are created when an organism encounter harsh conditions are called spores. These spores have a thick cell wall which helps them to with stand harsh conditions. They preserve the organisms genetic material and resume multiplying once favourable conditions are available. The formation of these spores is known as sporulation.
BHU PMT (Screening)-2011
Biological Classification
258503
E. coli lives in human intestine and cause
1 urinary tract infection in infants only
2 diarrhoea only adults
3 meningitis
4 None of the above
Explanation:
Escherichia coli is a gram-negative, facultative anaerobic, rod- shaped coliform bacterium of the genus Escherichia that is commonly found in the intestine of warm blooded organisms. - They live naturally in intestinal tract and helps in digestion of food.
BHU PMT (Screening)-2011
Biological Classification
258504
Many bacteria are now resistant to penicillin because
1 penicillin cause gene mutations
2 previously resistant forms survived and reproduced better than non-resistant forms
3 hospital environment inhibits competition among bacteria
4 penicillin triggers the synthesis of resistant proteins
Explanation:
Penicillins are used to treat infections caused by bacteria. They work by killing the bacteria or preventing their growth. So bacteria with resistant gene from penicillin transferred character to offspring. - Some bacteria have developed resistance to antibiotics that were once commonly used to treat them.
BHU PMT (Screening)-2011
Biological Classification
258505
A bacterium is capable of withstanding extreme heat, dryness and toxic chemical. This indicates that it is probably able to form
1 a thick peptidoglycan wall
2 endospores
3 endotoxins
4 endogenous buds
Explanation:
Bacterial endospores are simplified form of bacteria consisting of the DNA genome, Bacillus and the Clostridium are the main two genera of bacteria that form endospores. - The endospore are formed in response to unfavourable growth conditions in the bacterial environment most commonly induced by the limitaion of nutrients.