Biology : PU-CET (U.G) 2017 Panjab University Entrance Exam With Answers

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48.

Which Set Of Feature Represents Class Deuteromycetes ?

A: Aseptate, Unbranched Mycelium, Asexual Reproduction By Zoospores And Sexual By Isogametes
B: Aseptate, Branched Mycelium, Asexual Reproduction By Conidia And Sexual Reproduction By Anisogametes
C: Septate, Unbranched Mycelium, Asexual Reproduction By Aplanospores And Absence Of sex Organs
D: Septate, Branched Mycelium, Asexual Reproduction By Conidia And Absence Of Sexual Reproduction

The answer is: D

Explanation

The correct set of features that represents class Deuteromycetes is D: Septate, Branched Mycelium, Asexual Reproduction By Conidia And Absence Of Sexual Reproduction.

Class Deuteromycetes is a group of fungi that lack a known sexual phase in their life cycle. They are also known as Fungi Imperfecti because their sexual reproductive stages have not been observed.

The Deuteromycetes have septate hyphae, which means that their hyphae have cross-walls (septa) that divide the hyphae into compartments. These hyphae are also branched, forming a complex network of mycelium.

Asexual reproduction in Deuteromycetes occurs through the production of conidia, which are specialized spores that are formed at the tips of specialized hyphae called conidiophores. These conidia can then disperse and grow into new mycelia.

Unlike other fungal classes, Deuteromycetes lack a known sexual phase. Therefore, they do not produce any sexual reproductive structures or organs.

Therefore, the correct set of features that represents class Deuteromycetes is D: Septate, Branched Mycelium, Asexual Reproduction By Conidia And Absence Of Sexual Reproduction.