As a group in Viruses both DNA and RNA can serve as genetic material. Some Viruses have DNA enclosed in a protein sheath.
AIPMT - 2014
BIOXI02: BIOLOGICAL CLASSIFICATION
331575
Plant viruses generally have
1 Single stranded DNA
2 Double stranded DNA
3 Single stranded RNA
4 Double stranded RNA
Explanation:
In general, viruses that infect plants have single stranded RNA.
BIOXI02: BIOLOGICAL CLASSIFICATION
331576
Which of the following shows coiled RNA strand and capsomeres?
1 Polio virus
2 Tobacco mosaic virus
3 Measles virus
4 Retrovirus
Explanation:
TMV is a RNA virus that causes tobacco mosaic disease. It consists single stranded coiled RNA as its genetic material, a part of which hangs outside the protein coat. Protein coat consists of nearly 2130 capsomers which are helically arranged to form hollow cylinder.
AIPMT - 2014
BIOXI02: BIOLOGICAL CLASSIFICATION
331577
The given figure shows some structures labelled as A, B, C and D. Which structure has the protein coat that encloses the nucleic acid?
1 A
2 B
3 C
4 D
Explanation:
The structure marked as A, B, C and D are respectively head, collar, sheath and tail fibres. In head (structure marked as A), the protein coat (called the capsid) made of small subunits called capsomeres, protect the nucleic acid.
As a group in Viruses both DNA and RNA can serve as genetic material. Some Viruses have DNA enclosed in a protein sheath.
AIPMT - 2014
BIOXI02: BIOLOGICAL CLASSIFICATION
331575
Plant viruses generally have
1 Single stranded DNA
2 Double stranded DNA
3 Single stranded RNA
4 Double stranded RNA
Explanation:
In general, viruses that infect plants have single stranded RNA.
BIOXI02: BIOLOGICAL CLASSIFICATION
331576
Which of the following shows coiled RNA strand and capsomeres?
1 Polio virus
2 Tobacco mosaic virus
3 Measles virus
4 Retrovirus
Explanation:
TMV is a RNA virus that causes tobacco mosaic disease. It consists single stranded coiled RNA as its genetic material, a part of which hangs outside the protein coat. Protein coat consists of nearly 2130 capsomers which are helically arranged to form hollow cylinder.
AIPMT - 2014
BIOXI02: BIOLOGICAL CLASSIFICATION
331577
The given figure shows some structures labelled as A, B, C and D. Which structure has the protein coat that encloses the nucleic acid?
1 A
2 B
3 C
4 D
Explanation:
The structure marked as A, B, C and D are respectively head, collar, sheath and tail fibres. In head (structure marked as A), the protein coat (called the capsid) made of small subunits called capsomeres, protect the nucleic acid.
As a group in Viruses both DNA and RNA can serve as genetic material. Some Viruses have DNA enclosed in a protein sheath.
AIPMT - 2014
BIOXI02: BIOLOGICAL CLASSIFICATION
331575
Plant viruses generally have
1 Single stranded DNA
2 Double stranded DNA
3 Single stranded RNA
4 Double stranded RNA
Explanation:
In general, viruses that infect plants have single stranded RNA.
BIOXI02: BIOLOGICAL CLASSIFICATION
331576
Which of the following shows coiled RNA strand and capsomeres?
1 Polio virus
2 Tobacco mosaic virus
3 Measles virus
4 Retrovirus
Explanation:
TMV is a RNA virus that causes tobacco mosaic disease. It consists single stranded coiled RNA as its genetic material, a part of which hangs outside the protein coat. Protein coat consists of nearly 2130 capsomers which are helically arranged to form hollow cylinder.
AIPMT - 2014
BIOXI02: BIOLOGICAL CLASSIFICATION
331577
The given figure shows some structures labelled as A, B, C and D. Which structure has the protein coat that encloses the nucleic acid?
1 A
2 B
3 C
4 D
Explanation:
The structure marked as A, B, C and D are respectively head, collar, sheath and tail fibres. In head (structure marked as A), the protein coat (called the capsid) made of small subunits called capsomeres, protect the nucleic acid.
As a group in Viruses both DNA and RNA can serve as genetic material. Some Viruses have DNA enclosed in a protein sheath.
AIPMT - 2014
BIOXI02: BIOLOGICAL CLASSIFICATION
331575
Plant viruses generally have
1 Single stranded DNA
2 Double stranded DNA
3 Single stranded RNA
4 Double stranded RNA
Explanation:
In general, viruses that infect plants have single stranded RNA.
BIOXI02: BIOLOGICAL CLASSIFICATION
331576
Which of the following shows coiled RNA strand and capsomeres?
1 Polio virus
2 Tobacco mosaic virus
3 Measles virus
4 Retrovirus
Explanation:
TMV is a RNA virus that causes tobacco mosaic disease. It consists single stranded coiled RNA as its genetic material, a part of which hangs outside the protein coat. Protein coat consists of nearly 2130 capsomers which are helically arranged to form hollow cylinder.
AIPMT - 2014
BIOXI02: BIOLOGICAL CLASSIFICATION
331577
The given figure shows some structures labelled as A, B, C and D. Which structure has the protein coat that encloses the nucleic acid?
1 A
2 B
3 C
4 D
Explanation:
The structure marked as A, B, C and D are respectively head, collar, sheath and tail fibres. In head (structure marked as A), the protein coat (called the capsid) made of small subunits called capsomeres, protect the nucleic acid.
