biology mcqs
An extensive multiple-choice question test covering the diversity of the living world, biological classification systems, and detailed characteristics of the five kingdoms (Monera, Protista, Fungi, Plantae, and Animalia) including viruses, viroids, prions, and lichens, designed for competitive exam preparation.
Showing questions 61 - 80 of 168
61. What are the cell walls of fungi composed of?
62. Fungi that absorb soluble organic matter from dead substrates are called:
63. Which of the following are symbiotic associations involving fungi?
64. The sexual cycle in fungi involves which three steps?
65. In which class of fungi does an intervening dikaryotic stage (n+n) occur before the parental nuclei fuse?
66. Members of Phycomycetes have a mycelium that is:
67. Which of the following are examples of Phycomycetes?
68. Ascomycetes are commonly known as:
69. In Ascomycetes, asexual spores called conidia are produced:
70. Which ascomycete is extensively used in biochemical and genetic work?
71. Mushrooms, bracket fungi, and puffballs are common forms of which class of fungi?
72. In Basidiomycetes, what structures are absent, and how is plasmogamy brought about?
73. Deuteromycetes are commonly known as imperfect fungi because:
74. *Alternaria*, *Colletotrichum*, and *Trichoderma* are examples of which class of fungi?
75. Which of the following are examples of partially heterotrophic plants?
76. The plant cells in Kingdom Plantae have a cell wall mainly made of:
77. The life cycle of plants exhibits two distinct phases, a diploid sporophytic and a haploid gametophytic, that alternate with each other. This phenomenon is called:
78. Which of the following are characteristic features of Kingdom Animalia?
79. Which scientist recognised certain microbes as the causal organism of the mosaic disease of tobacco and found them smaller than bacteria?
80. M.W. Beijerinck named the new pathogen 'virus' and called the infectious fluid: