All the following are a method of gene transfer in bacteria except:
1. Translocation 2. Conjugation 3. Transduction 4. Transformation
Subtopic: Â Kingdom Monera: Bacterial Reproduction |
 66%
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Match plant diseases given in Column I with causative pathogens in Column II and select the correct match from the codes given:
Codes:
| COLUMN I | COLUMN II | ||
| A | Brown rust of wheat | P | Colletotrichum falcatum |
| B | Black rot of crucifers | Q | Xanthomonas campestris |
| C | Red rot of sugarcane | R | Phytophthora infestans |
| D | Late blight of potato | S | Puccinia graminis |
Codes:
| A | B | C | D | |
| 1. | S | Q | P | R |
| 2. | S | Q | R | P |
| 3. | S | R | P | Q |
| 4. | R | Q | R | S |
Subtopic: Â Kingdom Fungi: Introduction |
 59%
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Regarding bacteria:
1. The rod shaped are called as coccus
2. Majority are photosynthetic autotrophs
3. As a group show the maximum metabolic diversity
4. All are pathogenic to humans
1. The rod shaped are called as coccus
2. Majority are photosynthetic autotrophs
3. As a group show the maximum metabolic diversity
4. All are pathogenic to humans
Subtopic: Â Kingdom Monera: Introduction |
 83%
From NCERT
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Both Mycoplasma and Euglenoids:
1. can survive without oxygen
2. are unicellular eukaryotes
3. lack cell wall
4. have two flagella
1. can survive without oxygen
2. are unicellular eukaryotes
3. lack cell wall
4. have two flagella
Subtopic: Â Kingdom Monera: Actinomycetes & Mycoplasma |Â Kingdom Protista: Euglenoids |
 73%
From NCERT
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In members of Basidiomycetes:
| 1. | Mycelium is unbranched and coenocytic |
| 2. | Sex organs are absent and plasmogamy does not take place |
| 3. | Asexual spores are not found but vegetative reproduction by fragmentation is common |
| 4. | Basidiospores are produced endogenously on the basidium |
Subtopic: Â Kingdom Fungi: Basidomycetes |
 75%
From NCERT
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Identify the incorrect statement:
1. Viruses are obligate parasites
2. Prions are abnormally folded infectious proteins
3. Viroids are free RNA and lack a protein coat
4. Lichens grow very well in polluted areas
1. Viruses are obligate parasites
2. Prions are abnormally folded infectious proteins
3. Viroids are free RNA and lack a protein coat
4. Lichens grow very well in polluted areas
Subtopic: Â Lichens |
 91%
From NCERT
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Organisms that are highly valuable in learning about phloem transport are:
1. Aphids
2. Humming birds
3. Leaf miners
4. Caterpillars
1. Aphids
2. Humming birds
3. Leaf miners
4. Caterpillars
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Match each item in Column I with one in Column II and select the correct match from the codes given:
Codes:
| Group of protozoans | Example | ||
| A | Amoeboid | P | Entamoeba |
| B | Flagellated | Q | Paramecium |
| C | Ciliated | R | Trypanosoma |
| D | Sporozoan | S | Plasmodium |
Codes:
| A | B | C | D | |
| 1. | Q | S | P | R |
| 2. | S | Q | R | P |
| 3. | P | R | Q | S |
| 4. | R | P | S | Q |
Subtopic: Â Protozoa |
 90%
From NCERT
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Identify the incorrect statement regarding heterotrophic bacteria?
| 1. | They are most abundant bacteria in nature |
| 2. | Many of them are important decomposers |
| 3. | They play a great role in recycling nutrients like nitrogen, phosphorus, iron and sulphur |
| 4. | They are helpful in making curd from milk, production of antibiotics, fixing nitrogen in legume roots, etc. |
Subtopic: Â Kingdom Monera: Bacterial Classification |
 53%
From NCERT
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An intervening dikaryophase is seen during the sexual reproduction in members of the fungal class:
1. Phycomycetes and Ascomycetes
2. Ascomycytes and Basidiomycetes
3. Basidiomycetes and Deuteromycetes
4. Phycomycetes and Deuteromycetes
1. Phycomycetes and Ascomycetes
2. Ascomycytes and Basidiomycetes
3. Basidiomycetes and Deuteromycetes
4. Phycomycetes and Deuteromycetes
Subtopic: Â Kingdom Fungi: Introduction |
 89%
From NCERT
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