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Which of the following is incorrect for the lysogenic cycle in life cycle of bacteriophage:

1. Phage when gets incorporated with the bacterial chromosome is called prophage.
2. The bacterium continues to live and reproduce normally
3. Lysogenic bacteria may get infected by the related phage.
4. The cycle may convert into lytic type resulting from environmental exposure.

✅ Correct Answer: 3

In lysogenic cycle the process of spearation of phage DNA from the hosts chromosome and initiation of lytic cycle is called:

1. Lysis
2. Lysogeny
3. Induction
4. Adsorption

✅ Correct Answer: 3

In the lytic cycle of bacteriophage the host DNA is:

1. Replicated
2. Turn off by the protein coat.
3. Digested into its nucleotides
4. Turned on by the removal of the protein coat

✅ Correct Answer: 3

In the Lysogenic cycle the DNA of the bacteriophage:

1. Joins the bacterial chromosomes.
2. Attaches to the inner surface of the host membrane
3. Is immediately degraded when enters the host.
4. Goes directly to host ribosomes for translation

✅ Correct Answer: 1

Temperate phage may exist as :

1. Prophage
2. Capsid
3. Viron
4. Retrovirus

✅ Correct Answer: 1

Tobacco mosaic virus is :

1. Spherical
2. Rod Shaped
3. Tadpole like
4. Hexagonal

✅ Correct Answer: 2

Which of the following is an RNA virus:

1. Influenza virus
2. Herpes virus
3. HBV
4. Pox virus

✅ Correct Answer: 1

Which of the following disease results in Paralysis due to viral attack on C.N.S:

1. Measles
2. Herpes simplex
3. Hepatitis
4. Polio

✅ Correct Answer: 4

An enzyme which can convert single stranded RNA into double stranded viral DNA is called:

1. DNAase
2. RNAase
3. DNA polymrase
4. Reverse Transcriptase

✅ Correct Answer: 4

Which of the following virus has special affiliations with the tumor production:

1. Hepatitis virus
2. Retrovirus
3. Polio virus
4. Pox virus

✅ Correct Answer: 2

Which of the following is the smallest known virus:

1. Hepatitis virus
2. Retrovirus
3. Polio virus
4. Pox virus

✅ Correct Answer: 3

Complex symptoms like severe pneumonia vascular tumor sudden weight loss swollen lymph nodes and immune deficiency are features of:

1. Polio
2. Hepatitis
3. AIDS
4. HIV

✅ Correct Answer: 3

Which of the following statement about AIDS is incorrect:

1. is a host specific disease
2. An infected mother cannot pass the virus to her baby.
3. Results in enlargement of lymph nodes
4. Can be prevented.

✅ Correct Answer: 2

Mode of transmission of hepatitis A is :

1. Serum
2. Faeco-oral
3. Sexual contact
4. All of these

✅ Correct Answer: 2

Which one of the following specially result in chronic liver disease leading to hepatic failure:

1. HAV
2. HBV
3. HCV
4. HEV

✅ Correct Answer: 3

For which of the following no preventive vaccine is available

1. HAV
2. HBV
3. HCV
4. HEV

✅ Correct Answer: 3

How many species of fungi are known till now

1. 10000
2. 100000
3. 10000000
4. 1000

✅ Correct Answer: 2

Which of the following group represent pathological fungi?

1. Mushrooms morels and truffles
2. Rusts smuts and molds
3. Penicillium
4. All of these

✅ Correct Answer: 2

Which one of the following is different from all the rest regarding the number of cells inits body?

1. Rusts
2. Mushrooms
3. Molds
4. Yeasts

✅ Correct Answer: 4

Fungi which get their food directly from dead organic matter are called?

1. Parasitic fungi
2. Predators
3. Mutualists
4. Decomposers

✅ Correct Answer: 4

Root like structure in saprotrophic fungi are called

1. Rhizodis
2. Haustoria
3. Hyphae
4. Constricting rings

✅ Correct Answer: 1

Those fungi which can grow only on their living host and cannot be grown on available defined growth culture medium e.g. various mildews and most rust species are called

1. Parasitic fungi
2. Obligate parasitic fungi
3. Facultative parasitic fungi
4. All of these

✅ Correct Answer: 2

Oyster mushroom is an example of predator fungi which attack on

1. Pin warms
2. Tape worms
3. Round worms
4. Platehelminthes

✅ Correct Answer: 3

Lichen is a symbiotic mutualistic association of fungi with

1. Autotrophs
2. Roots of vascular plants
3. Green algae and cyanobacterium
4. Leguminous plants

✅ Correct Answer: 3

Foliose lichen are

1. Stem like
2. Branching
3. Leaf like
4. Crust like

✅ Correct Answer: 3

An association in which fungal hyphae penetrate the outer cells of the plant root forming coils swellings and minute branches and also extend out into surrounding soil is called:

1. Mycorrizael association
2. Endomycorrhizae
3. Ectomycorrhizae
4. Lichen

✅ Correct Answer: 3

The Kingdom of recyclers is known as kingdom

1. Algae
2. Bacteria
3. Fungi
4. Embryophata

✅ Correct Answer: 3

According to two kingdom classification fungi were placed in kingdom

1. Plantae
2. Animalia
3. Protista
4. Fungi

✅ Correct Answer: 1

Ecological role of fungi as decomposers is only paralleled by

1. Cyanobacteria
2. Blue green algae
3. Bacteria
4. Virus

✅ Correct Answer: 3

Coenocytic hyphae are also known as

1. Septate
2. Perforated hyphae
3. Aseptate
4. Uninucleate hyphae

✅ Correct Answer: 3

Unicellular fungi which is non-hyphal is

1. Mushroom
2. Yeast
3. Penicillium
4. Mold

✅ Correct Answer: 2

Parasitic fungi absorb nutrients directly from the living host cytoplasm with the help of special hyphal tips called

1. Mildew
2. Constricting ring
3. Haustoria
4. All of these

✅ Correct Answer: 3

Constricting ring around nematode is formed by

1. Arthrobotrys
2. Pleurotus ostreatus
3. Mildews
4. All of these

✅ Correct Answer: 1

Type of lichen which tightly attaches to rocks is

1. Parmelia
2. Fruticose
3. Foliose
4. Crustose

✅ Correct Answer: 4

Mycorrhizae are found in about ______ vascular plants

1. 90%
2. 95%
3. 98%
4. 96%

✅ Correct Answer: 2

Fungi can tolerate pH from

1. 3?7
2. 2?6
3. 2?9
4. 3?6

✅ Correct Answer: 3

Spores in sporangia are produced by process.

1. Sexual
2. Asexual
3. Both of these
4. None of these

✅ Correct Answer: 2

Which of the following statement is incorrect about asexual reproduction by spores in fungi?

1. Spores are haploid structures
2. They are dispersed via wind water and insects
3. On falling to a suitable place they germinate
4. These are produced through fruiting bodies like ascocarps and basidiocarps.

✅ Correct Answer: 4

Simple breaking of mycelium resulting in formation of a new mycelium from each broken segments is called

1. Sporing
2. Conidiation
3. Budding
4. Fragmentation

✅ Correct Answer: 4

By which of the following mechanism unicellular yeast reproduce?

1. Sporing
2. Conidiation
3. Budding
4. Fragmentation

✅ Correct Answer: 3

In which of the following example of fungi dikaryotic hyphae exist for long period?

1. Deuteromycota
2. Basidiomycota
3. Zygomycota
4. All of these

✅ Correct Answer: 2

Which of the following is called black bread mold?

1. Pilobolus
2. Penicillium
3. Neurospora
4. Rhizopus

✅ Correct Answer: 4

At which stage in the life cycle of Rhizopus meiosis takes place?

1. Formation of sporangiophore via germination of zygospore.
2. Formation of spores in sporangia
3. Fusion of two hyphae
4. Formation of Zygote by fusion of gametangia.

✅ Correct Answer: 1

Which one of the following is the largest group of fungi?

1. Zygomycota
2. Ascomycota
3. Basidiomycota
4. Deuteromycota

✅ Correct Answer: 2

How many species of ascomycota occur in lichen symbiotic association?

1. 30%
2. 40%
3. 50%
4. 60%

✅ Correct Answer: 3

All such fungi in which sexual phase has not been observed are present in

1. Zygomycota
2. Ascomycota
3. Basidiomycota
4. Deuteromycota

✅ Correct Answer: 4

Mode of nutrition in penecillium is

1. Saprotrophs
2. Parasitic
3. Predators
4. Mutualistics

✅ Correct Answer: 1

Penicillium reproduce via

1. Spores
2. Conidia
3. Budding
4. Fragmentation

✅ Correct Answer: 2

How many species of mushrooms are edible?

1. 100
2. 200
3. 3000
4. 4000

✅ Correct Answer: 2

Death cap/death angel (Amanita) and Jack O Latern mushroom are examples of

1. Edible mushrooms
2. Poisonous mushrooms
3. Both of these
4. Both of these

✅ Correct Answer: 2

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