Biological Classification

Which fungal disease spreads by seed and flowers?

1. Loose smut of wheat
2. Corn smut
3. Covered smut of barley
4. Soft rot of potato

Which of the following secretes toxins during storage conditions of crop plants?

1. Aspergillus
2. Penicillium
3. Fusarium
4. Colletotrichum

In which of the following animals dimorphic nucleus is found?

1. Amoeba proteus
2. Trypanosoma gambiense
3. Plasmodium vivax
4. Paramecium caudatum

In protozoa like Amoeba and Paramecium, the organ for osmoregulation is

1. contractile vacuole
2. mitochondria
3. nucleus
4. food vacuole.

Organisms which obtain energy by the oxidation of reduced inorganic compounds are called

1. photoautotrophs
2. chemoautotrophs
3. saprozoic
4. coproheterotrophs

Cauliflower mosaic virus contains

1. ss RNA
2. ds RNA
3. ds DNA
4. ss DNA

What is true for cyanobacteria?

1. Oxygenic with nitrogenase
2. Oxygenic without nitrogenase
3. Non-oxygenic with nitrogenase
4. Non-oxygenic without nitrogenase

What is true for archaebacteria?

1. All halophiles
2. All photosynthetics
3. All fossils
4. Oldest living beings

Adhesive pad of fungi penetrates the host with the help of

1. mechanical pressure and enzymes
2. hooks and suckers
3. softening by enzymes
4. only by mechanical pressure

What is true for photolithotrophs?

1. Obtain energy from radiations and hydrogen from organic compounds
2. Obtain energy from radiations and hydrogen from inorganic compounds
3. Obtain energy from organic compounds
4. Obtain energy from inorganic compounds