331578
Which of the following disease is caused by virus?
1 Covid-19
2 HIV
3 Tuberculosis
4 1 and 2
Explanation:
HIV and Covid-19.
BIOXI02: BIOLOGICAL CLASSIFICATION
331579
What is indicating A to D in this figure.
1 A – Collar, B – Tail Fibres, C – Head, D – Sheath
2 A – Sheath, B – Collar, C – Head, D – Tail fibres
3 A – Tail fibres, B – Sheath, C – Collar, D – Head
4 A – Tail fibres, B – Collar, C – Head, D – Sheath
Explanation:
A – Sheath, B – Collar, C – Head, D – Tail fibres
BIOXI02: BIOLOGICAL CLASSIFICATION
331580
How many of the given organisms are obligate parasites which take over the machinery of the host cell? TMV, Nostoc , Bacteriophage, HIV, Oscillatoria
1 Two
2 Three
3 One
4 Four
Explanation:
Obligate Parasite is a parasitic organism that cannot complete its life-cycle without exploiting a suitable host. Viruses like TMV, Bacteriophage, HIV are obligate Parasites.
BIOXI02: BIOLOGICAL CLASSIFICATION
331581
How many statements features are correct for bacteriophage? i. They have polygonal head and envelope ii. Contractile tail iii. Tail sheath present iv. Tail fibres are absent v. Nucleic acid as double stranded circular DNA usually
1 ii and iii
2 i, ii, iii and iv
3 ii, iii, iv and v
4 All correct except iv
Explanation:
Bacteriophage contains 6 tail fibres which are helpful in attachment of the bacteriophage with the host.
BIOXI02: BIOLOGICAL CLASSIFICATION
331582
Who showed that virus can be crystallized out?
1 Ivanowsky
2 Beijerinck
3 W.M. Stanley
4 M. W. Stanley
Explanation:
W.M. Stanley (1935) showed that viruses could be crystallised and crystals consist largely of proteins.
331578
Which of the following disease is caused by virus?
1 Covid-19
2 HIV
3 Tuberculosis
4 1 and 2
Explanation:
HIV and Covid-19.
BIOXI02: BIOLOGICAL CLASSIFICATION
331579
What is indicating A to D in this figure.
1 A – Collar, B – Tail Fibres, C – Head, D – Sheath
2 A – Sheath, B – Collar, C – Head, D – Tail fibres
3 A – Tail fibres, B – Sheath, C – Collar, D – Head
4 A – Tail fibres, B – Collar, C – Head, D – Sheath
Explanation:
A – Sheath, B – Collar, C – Head, D – Tail fibres
BIOXI02: BIOLOGICAL CLASSIFICATION
331580
How many of the given organisms are obligate parasites which take over the machinery of the host cell? TMV, Nostoc , Bacteriophage, HIV, Oscillatoria
1 Two
2 Three
3 One
4 Four
Explanation:
Obligate Parasite is a parasitic organism that cannot complete its life-cycle without exploiting a suitable host. Viruses like TMV, Bacteriophage, HIV are obligate Parasites.
BIOXI02: BIOLOGICAL CLASSIFICATION
331581
How many statements features are correct for bacteriophage? i. They have polygonal head and envelope ii. Contractile tail iii. Tail sheath present iv. Tail fibres are absent v. Nucleic acid as double stranded circular DNA usually
1 ii and iii
2 i, ii, iii and iv
3 ii, iii, iv and v
4 All correct except iv
Explanation:
Bacteriophage contains 6 tail fibres which are helpful in attachment of the bacteriophage with the host.
BIOXI02: BIOLOGICAL CLASSIFICATION
331582
Who showed that virus can be crystallized out?
1 Ivanowsky
2 Beijerinck
3 W.M. Stanley
4 M. W. Stanley
Explanation:
W.M. Stanley (1935) showed that viruses could be crystallised and crystals consist largely of proteins.
331578
Which of the following disease is caused by virus?
1 Covid-19
2 HIV
3 Tuberculosis
4 1 and 2
Explanation:
HIV and Covid-19.
BIOXI02: BIOLOGICAL CLASSIFICATION
331579
What is indicating A to D in this figure.
1 A – Collar, B – Tail Fibres, C – Head, D – Sheath
2 A – Sheath, B – Collar, C – Head, D – Tail fibres
3 A – Tail fibres, B – Sheath, C – Collar, D – Head
4 A – Tail fibres, B – Collar, C – Head, D – Sheath
Explanation:
A – Sheath, B – Collar, C – Head, D – Tail fibres
BIOXI02: BIOLOGICAL CLASSIFICATION
331580
How many of the given organisms are obligate parasites which take over the machinery of the host cell? TMV, Nostoc , Bacteriophage, HIV, Oscillatoria
1 Two
2 Three
3 One
4 Four
Explanation:
Obligate Parasite is a parasitic organism that cannot complete its life-cycle without exploiting a suitable host. Viruses like TMV, Bacteriophage, HIV are obligate Parasites.
BIOXI02: BIOLOGICAL CLASSIFICATION
331581
How many statements features are correct for bacteriophage? i. They have polygonal head and envelope ii. Contractile tail iii. Tail sheath present iv. Tail fibres are absent v. Nucleic acid as double stranded circular DNA usually
1 ii and iii
2 i, ii, iii and iv
3 ii, iii, iv and v
4 All correct except iv
Explanation:
Bacteriophage contains 6 tail fibres which are helpful in attachment of the bacteriophage with the host.
BIOXI02: BIOLOGICAL CLASSIFICATION
331582
Who showed that virus can be crystallized out?
1 Ivanowsky
2 Beijerinck
3 W.M. Stanley
4 M. W. Stanley
Explanation:
W.M. Stanley (1935) showed that viruses could be crystallised and crystals consist largely of proteins.
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BIOXI02: BIOLOGICAL CLASSIFICATION
331578
Which of the following disease is caused by virus?
1 Covid-19
2 HIV
3 Tuberculosis
4 1 and 2
Explanation:
HIV and Covid-19.
BIOXI02: BIOLOGICAL CLASSIFICATION
331579
What is indicating A to D in this figure.
1 A – Collar, B – Tail Fibres, C – Head, D – Sheath
2 A – Sheath, B – Collar, C – Head, D – Tail fibres
3 A – Tail fibres, B – Sheath, C – Collar, D – Head
4 A – Tail fibres, B – Collar, C – Head, D – Sheath
Explanation:
A – Sheath, B – Collar, C – Head, D – Tail fibres
BIOXI02: BIOLOGICAL CLASSIFICATION
331580
How many of the given organisms are obligate parasites which take over the machinery of the host cell? TMV, Nostoc , Bacteriophage, HIV, Oscillatoria
1 Two
2 Three
3 One
4 Four
Explanation:
Obligate Parasite is a parasitic organism that cannot complete its life-cycle without exploiting a suitable host. Viruses like TMV, Bacteriophage, HIV are obligate Parasites.
BIOXI02: BIOLOGICAL CLASSIFICATION
331581
How many statements features are correct for bacteriophage? i. They have polygonal head and envelope ii. Contractile tail iii. Tail sheath present iv. Tail fibres are absent v. Nucleic acid as double stranded circular DNA usually
1 ii and iii
2 i, ii, iii and iv
3 ii, iii, iv and v
4 All correct except iv
Explanation:
Bacteriophage contains 6 tail fibres which are helpful in attachment of the bacteriophage with the host.
BIOXI02: BIOLOGICAL CLASSIFICATION
331582
Who showed that virus can be crystallized out?
1 Ivanowsky
2 Beijerinck
3 W.M. Stanley
4 M. W. Stanley
Explanation:
W.M. Stanley (1935) showed that viruses could be crystallised and crystals consist largely of proteins.
331578
Which of the following disease is caused by virus?
1 Covid-19
2 HIV
3 Tuberculosis
4 1 and 2
Explanation:
HIV and Covid-19.
BIOXI02: BIOLOGICAL CLASSIFICATION
331579
What is indicating A to D in this figure.
1 A – Collar, B – Tail Fibres, C – Head, D – Sheath
2 A – Sheath, B – Collar, C – Head, D – Tail fibres
3 A – Tail fibres, B – Sheath, C – Collar, D – Head
4 A – Tail fibres, B – Collar, C – Head, D – Sheath
Explanation:
A – Sheath, B – Collar, C – Head, D – Tail fibres
BIOXI02: BIOLOGICAL CLASSIFICATION
331580
How many of the given organisms are obligate parasites which take over the machinery of the host cell? TMV, Nostoc , Bacteriophage, HIV, Oscillatoria
1 Two
2 Three
3 One
4 Four
Explanation:
Obligate Parasite is a parasitic organism that cannot complete its life-cycle without exploiting a suitable host. Viruses like TMV, Bacteriophage, HIV are obligate Parasites.
BIOXI02: BIOLOGICAL CLASSIFICATION
331581
How many statements features are correct for bacteriophage? i. They have polygonal head and envelope ii. Contractile tail iii. Tail sheath present iv. Tail fibres are absent v. Nucleic acid as double stranded circular DNA usually
1 ii and iii
2 i, ii, iii and iv
3 ii, iii, iv and v
4 All correct except iv
Explanation:
Bacteriophage contains 6 tail fibres which are helpful in attachment of the bacteriophage with the host.
BIOXI02: BIOLOGICAL CLASSIFICATION
331582
Who showed that virus can be crystallized out?
1 Ivanowsky
2 Beijerinck
3 W.M. Stanley
4 M. W. Stanley
Explanation:
W.M. Stanley (1935) showed that viruses could be crystallised and crystals consist largely of proteins.
