331543
Infectious agent which is smaller than virus and having no protein coat is
1 Viroin
2 Viroids
3 Prions
4 Mycorrhizae
Explanation:
Viroids was found to be a free RNA; it lacked the protein coat.
BIOXI02: BIOLOGICAL CLASSIFICATION
331544
Assertion : Viroids are small RNA particles which are infectious and devoid of protein coat. Reason : Viroids contain more than 900 nucleotides and genes are absent in them
1 Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false.
Explanation:
Viroids was discovered by Diener in 1971. Viroids are infectious particle which contains RNA but lacks protein coat around it, molecular weight of viroid is very less . Viroid is an obligate parasite.
BIOXI02: BIOLOGICAL CLASSIFICATION
331545
Which of the following statements is wrong for viroids?
1 They are smaller than viruses.
2 They cause infections.
3 Their RNA is of high molecular weight.
4 They lack a protein coat
Explanation:
Viroids lack protein coat and are free RNAs. The RNA of viroids was of lower molecular weight.
NEET - 2016
BIOXI02: BIOLOGICAL CLASSIFICATION
331546
Select the wrong statement
1 W.M. Stanley showed that viruses could be crystallised.
2 The viroids were discovered by D.J. Ivanowsky.
3 Mosaic disease in tobacco and AIDS in human being are caused by viruses.
4 The term ‘contagium vivum fluidum’ was coined by Beijerinck.
Explanation:
T.O. Diener discovered infectious RNA particles known as Viroids. Viroids are devoid of protein coat and causes diseases in plants eg: potato spindle tuber.
AIPMT - 2015
BIOXI02: BIOLOGICAL CLASSIFICATION
331547
Viroids have
1 Double stranded RNA covered by protein coat
2 Single stranded DNA not covered by protein coat.
3 Double stranded DNA covered by protein coat
4 Single stranded RNA not covered by protein coat
Explanation:
Viroids was found to be a free RNA; it lacked the protein coat
331543
Infectious agent which is smaller than virus and having no protein coat is
1 Viroin
2 Viroids
3 Prions
4 Mycorrhizae
Explanation:
Viroids was found to be a free RNA; it lacked the protein coat.
BIOXI02: BIOLOGICAL CLASSIFICATION
331544
Assertion : Viroids are small RNA particles which are infectious and devoid of protein coat. Reason : Viroids contain more than 900 nucleotides and genes are absent in them
1 Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false.
Explanation:
Viroids was discovered by Diener in 1971. Viroids are infectious particle which contains RNA but lacks protein coat around it, molecular weight of viroid is very less . Viroid is an obligate parasite.
BIOXI02: BIOLOGICAL CLASSIFICATION
331545
Which of the following statements is wrong for viroids?
1 They are smaller than viruses.
2 They cause infections.
3 Their RNA is of high molecular weight.
4 They lack a protein coat
Explanation:
Viroids lack protein coat and are free RNAs. The RNA of viroids was of lower molecular weight.
NEET - 2016
BIOXI02: BIOLOGICAL CLASSIFICATION
331546
Select the wrong statement
1 W.M. Stanley showed that viruses could be crystallised.
2 The viroids were discovered by D.J. Ivanowsky.
3 Mosaic disease in tobacco and AIDS in human being are caused by viruses.
4 The term ‘contagium vivum fluidum’ was coined by Beijerinck.
Explanation:
T.O. Diener discovered infectious RNA particles known as Viroids. Viroids are devoid of protein coat and causes diseases in plants eg: potato spindle tuber.
AIPMT - 2015
BIOXI02: BIOLOGICAL CLASSIFICATION
331547
Viroids have
1 Double stranded RNA covered by protein coat
2 Single stranded DNA not covered by protein coat.
3 Double stranded DNA covered by protein coat
4 Single stranded RNA not covered by protein coat
Explanation:
Viroids was found to be a free RNA; it lacked the protein coat
331543
Infectious agent which is smaller than virus and having no protein coat is
1 Viroin
2 Viroids
3 Prions
4 Mycorrhizae
Explanation:
Viroids was found to be a free RNA; it lacked the protein coat.
BIOXI02: BIOLOGICAL CLASSIFICATION
331544
Assertion : Viroids are small RNA particles which are infectious and devoid of protein coat. Reason : Viroids contain more than 900 nucleotides and genes are absent in them
1 Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false.
Explanation:
Viroids was discovered by Diener in 1971. Viroids are infectious particle which contains RNA but lacks protein coat around it, molecular weight of viroid is very less . Viroid is an obligate parasite.
BIOXI02: BIOLOGICAL CLASSIFICATION
331545
Which of the following statements is wrong for viroids?
1 They are smaller than viruses.
2 They cause infections.
3 Their RNA is of high molecular weight.
4 They lack a protein coat
Explanation:
Viroids lack protein coat and are free RNAs. The RNA of viroids was of lower molecular weight.
NEET - 2016
BIOXI02: BIOLOGICAL CLASSIFICATION
331546
Select the wrong statement
1 W.M. Stanley showed that viruses could be crystallised.
2 The viroids were discovered by D.J. Ivanowsky.
3 Mosaic disease in tobacco and AIDS in human being are caused by viruses.
4 The term ‘contagium vivum fluidum’ was coined by Beijerinck.
Explanation:
T.O. Diener discovered infectious RNA particles known as Viroids. Viroids are devoid of protein coat and causes diseases in plants eg: potato spindle tuber.
AIPMT - 2015
BIOXI02: BIOLOGICAL CLASSIFICATION
331547
Viroids have
1 Double stranded RNA covered by protein coat
2 Single stranded DNA not covered by protein coat.
3 Double stranded DNA covered by protein coat
4 Single stranded RNA not covered by protein coat
Explanation:
Viroids was found to be a free RNA; it lacked the protein coat
331543
Infectious agent which is smaller than virus and having no protein coat is
1 Viroin
2 Viroids
3 Prions
4 Mycorrhizae
Explanation:
Viroids was found to be a free RNA; it lacked the protein coat.
BIOXI02: BIOLOGICAL CLASSIFICATION
331544
Assertion : Viroids are small RNA particles which are infectious and devoid of protein coat. Reason : Viroids contain more than 900 nucleotides and genes are absent in them
1 Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false.
Explanation:
Viroids was discovered by Diener in 1971. Viroids are infectious particle which contains RNA but lacks protein coat around it, molecular weight of viroid is very less . Viroid is an obligate parasite.
BIOXI02: BIOLOGICAL CLASSIFICATION
331545
Which of the following statements is wrong for viroids?
1 They are smaller than viruses.
2 They cause infections.
3 Their RNA is of high molecular weight.
4 They lack a protein coat
Explanation:
Viroids lack protein coat and are free RNAs. The RNA of viroids was of lower molecular weight.
NEET - 2016
BIOXI02: BIOLOGICAL CLASSIFICATION
331546
Select the wrong statement
1 W.M. Stanley showed that viruses could be crystallised.
2 The viroids were discovered by D.J. Ivanowsky.
3 Mosaic disease in tobacco and AIDS in human being are caused by viruses.
4 The term ‘contagium vivum fluidum’ was coined by Beijerinck.
Explanation:
T.O. Diener discovered infectious RNA particles known as Viroids. Viroids are devoid of protein coat and causes diseases in plants eg: potato spindle tuber.
AIPMT - 2015
BIOXI02: BIOLOGICAL CLASSIFICATION
331547
Viroids have
1 Double stranded RNA covered by protein coat
2 Single stranded DNA not covered by protein coat.
3 Double stranded DNA covered by protein coat
4 Single stranded RNA not covered by protein coat
Explanation:
Viroids was found to be a free RNA; it lacked the protein coat
331543
Infectious agent which is smaller than virus and having no protein coat is
1 Viroin
2 Viroids
3 Prions
4 Mycorrhizae
Explanation:
Viroids was found to be a free RNA; it lacked the protein coat.
BIOXI02: BIOLOGICAL CLASSIFICATION
331544
Assertion : Viroids are small RNA particles which are infectious and devoid of protein coat. Reason : Viroids contain more than 900 nucleotides and genes are absent in them
1 Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false.
Explanation:
Viroids was discovered by Diener in 1971. Viroids are infectious particle which contains RNA but lacks protein coat around it, molecular weight of viroid is very less . Viroid is an obligate parasite.
BIOXI02: BIOLOGICAL CLASSIFICATION
331545
Which of the following statements is wrong for viroids?
1 They are smaller than viruses.
2 They cause infections.
3 Their RNA is of high molecular weight.
4 They lack a protein coat
Explanation:
Viroids lack protein coat and are free RNAs. The RNA of viroids was of lower molecular weight.
NEET - 2016
BIOXI02: BIOLOGICAL CLASSIFICATION
331546
Select the wrong statement
1 W.M. Stanley showed that viruses could be crystallised.
2 The viroids were discovered by D.J. Ivanowsky.
3 Mosaic disease in tobacco and AIDS in human being are caused by viruses.
4 The term ‘contagium vivum fluidum’ was coined by Beijerinck.
Explanation:
T.O. Diener discovered infectious RNA particles known as Viroids. Viroids are devoid of protein coat and causes diseases in plants eg: potato spindle tuber.
AIPMT - 2015
BIOXI02: BIOLOGICAL CLASSIFICATION
331547
Viroids have
1 Double stranded RNA covered by protein coat
2 Single stranded DNA not covered by protein coat.
3 Double stranded DNA covered by protein coat
4 Single stranded RNA not covered by protein coat
Explanation:
Viroids was found to be a free RNA; it lacked the protein coat
