A phage with the following life cycle will be called as:

1. Temperate
2. Virulent
3. Prophage
4. Prion

Identify the incorrect statement regarding the novel corona virus [2019-nCoV]:
1. It is a double-stranded RNA coronavirus
2. The virus is thought to have a zoonotic origin
3. Human-to-human transmission of the virus has been confirmed
4. Mode of transmission is through respiratory droplets from coughs and sneezes

An earlier treatment of pituitary dwarves with the pituitary extracts of cadavers was frequently fatal as the recipients developed:
1. CJD
2. Scrapie
3. BSE
4. Kuru

Identify the correct statement regarding prions:
I. They are misfolded proteins with the ability to transmit their misfolded shape onto normal variants of the same protein
II. They act very fast with a very short incubation period
III. They are virtually indestructible
1. Only I and II
2. Only I and III
3. Only II and III
4. I, II and III

Dolipore septum and clamp connections are features seen in the members of the fungal class:
1. Ascomycetes
2. Phycomycetes
3. Basidiomycetes
4. Deuteromycetes

The given diagram shows the life cycle of:

1. Puccinia graminis tritici with A part representing the stages in wheat plant and B part representing the stages in Barberry plant
2. Puccinia graminis tritici with A part representing the stages in Barberry plant and B part representing the stages in wheat plant
3. Ustilago tritici with A part representing the stages in wheat plant and B part representing the stages in Barberry plant
4. Ustilago tritici with A part representing the stages in Barberry plant and B part representing the stages in wheat plant

The Great Famine of Ireland [1845 to 1849] causing the island's population to fall by 20% and 25% was caused by:
1. Phytophthora infestans
2. Helminthosporium oryzae
3. Puccinia graminis tritici
4. Ustilago tritici

In the light of recent classification of living organisms into three domains of life (bacteria, archaea and eukarya), which one of the following statements is true about archaea
1. Archaea completely differ from both prokaryotes and eukaryotes
2. Archaea completely differ from prokaryotes
3. Archaea resemble eukarya in all respects
4. Archaea have some novel features that are absent in both prokaryotes and eukaryotes

Thermococcus, Methanococcus and Methanobacterium exemplify
1. Bacteria whose DNA is relaxed or positively supercoiled but which have a cytoskeleton as well as mitochondria
2. Bacteria that contain a cytoskeleton and ribosomes
3. Archaebacteria that contain protein homologous to eukaryotic core histones
4. Archaebacteria that lack any histones resembling those found in eukaryotes but whose DNA is negatively supercoiled

Consider the following regarding the reasons for the fact that now Cyanobacteria are kept in Monera and not in Plantae:

I. They are prokaryotes.
II. The cell wall of cyanobacteria has peptidoglycan.
III. They can fix atmospheric nitrogen.

The correct explanations would be:

1. I and II only
2. I and III only
3. II and III only
4. I, II and III