Free Biodiversity and Variety of Life MCQs with Answers

• A. Conjugation
• B. Parasexuality
• C. Budding
• D. Transduction

Explanation: Parasexuality is the correct answer because it describes a process in deuteromycetes where genetic recombination occurs without the…

• A. They are also called imperfect fungi
• B. Their asexual spores are called conidia
• C. It is a heterogeneous polyphyletic group
• D. They have both sexual and asexual reproduction

Explanation: The correct answer is Option D: They have both sexual and asexual reproduction. This statement is not true about deuteromycetes.

• A. Lack of flagellated cells
• B. Thick walled zygote
• C. Dispersal of spores by wind
• D. Cytoplasmic flow throughout the hyphae

Explanation: The correct answer is cytoplasmic flow throughout the hyphae. This feature is not directly related to survival on land; it is a general…

• A. Below 5°C
• B. Above 50°C
• C. 5−50°C
• D. Both a and b

Explanation: Fungi are incredibly adaptable organisms that can survive in a broad range of temperatures.

• A. Decomposition
• B. Bioremediation
• C. Bioindicator of pollution
• D. Mycorrhizal association

Explanation: The correct answer is Mycorrhizal association. This is a specific mutualistic relationship between fungi and plant roots, where both…

• A. Mushrooms
• B. Morchella
• C. Amanita
• D. Aspergillus

Explanation: The correct answer is Amanita. Many Amanita species, such as the Amanita phalloides (death cap), are highly toxic and can be fatal if…

• A. Morels
• B. Truffles
• C. Mushrooms
• D. All these

Explanation: Truffles are a type of tuberous fungi that grow underground. They are highly valued for their unique aroma and are often located with the…

• A. Amanita
• B. Morchella
• C. Aspergillus
• D. Agaricus

Explanation: The correct answer is Amanita. The term 'death angel' commonly refers to highly toxic mushrooms in the Amanita genus, such as Amanita…

• A. Jack-O' Lantern Mushroom
• B. Amanita
• C. Aspergillus
• D. Agaricus

Explanation: The correct answer is the Jack-O' Lantern Mushroom. This species is known for its bioluminescent properties, where the gills can emit a…

• A. Causes damage to stored cut lumber
• B. Responsible for Histoplasmosis
• C. Used in genetic/molecular biological research
• D. Starvation to death of many people

Explanation: The correct answer is that fungi are used in genetic and molecular biological research.

• A. Used to inhibit fungal growth
• B. Provides flavour, aroma, and colour to some cheese
• C. Source of natural dyes
• D. All these

Explanation: The correct answer is All these because fungi have multiple economic benefits.

• A. They are eukaryotic.
• B. All fungi possess a purely cellulosic cell wall.
• C. They are heterotrophic.
• D. They are both unicellular and multicellular.

Explanation: Cell wall in fungi is composed of chitin, a polysaccharide comprising NacetylD glucosamine (a derivative of glucose).

• A. Haploid endosperm is typical feature of Gymnosperms.
• B. Brown algae have chlorophyll a and c and fucoxanthin.
• C. Archegonia are found in Bryophyta, Pteridophyta and Gymnosperms.
• D. Mucor has biflagellate zoospores.

Explanation: Mucor is a member of Zygomycetes (the conjugation fungi) in which motile cells e.g. zoospores, planogametes, etc. are absent.

• A. Mucor Reproduction by Conjugation Ascomycetes
• B. Agaricus Parasitic fungus Basidiomycetes
• C. Phytophthora Aseptate Basidiomycetes mycelium
• D. Alternaria Sexual reproduction absent Deuteromycetes

Explanation: Alternaria is a Deuteromycetes member which are also known as fungi imperfecti.

• A. Root pressureguttation
• B. Pucciniasmut
• C. Rootexarch protoxylem
• D. Cassiaimbricate aestivation

Explanation: Rust is a group of parasitic fungi of the phylum Basidiomycota. Many of these species attack the leaves and stems of cereal crops.

• A. Black rust of wheat Puccinia graminis
• B. Loose smut of wheat Ustilago nuda
• C. Root knot of vegetables Meloidogyne sp.
• D. Late blight of potato Alternaria solani

Explanation: Late blight of potato disease is caused by Phytophthora infestans. It is a phycomycetes fungus.

• A. an epiphytic relationship with the alga
• B. a parasitic relationship with alga
• C. a symbiotic relationship with alga.

Explanation: Lichens are peculiar dual organisms produced by the intimate association of two organisms: a fungus and an alga.

• A. Karyogamy
• B. Dikaryotization
• C. Diploidization
• D. Meiosis

Explanation: Answer is "Meiosis"Explanation: Both basidiospores and ascospores are haploid spores formed from diploid nucleus by reduction division or…

• A. These are produced by the sexual process
• B. These are produced by the asexual process
• C. These are haploid
• D. These are motile and flagellate

Explanation: Answer is "These are motile and flagellate"Explanation: Fungi produces non-motile spores which lack flagella.

• A. Absorptive heterotrophic mode of nutrition
• B. Occurrence of chitin
• C. Capability of reproduction
• D. Nuclear mitosis

Explanation: Answer is "Nuclear mitosis"Explanation: Nuclear mitosis is a unique feature of fungi as no other group of organisms carries out nuclear…