Match the Viral Cycle Phase in Column I with the key molecular event in Column II.

Column I (Phase)	Column II (Key Event)
A. Attachment	1. Interaction of tail fibers with specific host cell wall receptors
B. Release	2. Action of Lysozyme/Endolysin to break the cell wall
C. Lysogeny	3. Integration of viral DNA into the host genome (Prophage)
D. Maturation	4. Spontaneous self-assembly of capsid heads and tails

TLS Online TPP Program

#Question id: 40511

#Environmental Science

Match scientists with contributions

Column I	Column II
A. Oparin	1. Swan-neck flask experiment
B. Haldane	2. Early atmosphere hypothesis
C. Miller	3. Electrical discharge experiment
D. Pasteur	4. Chemical evolution model

TLS Online TPP Program

#Question id: 40512

#Environmental Science

 Which statements are correct regarding chemical evolution?

1. Organic molecules formed abiotically

2. Oxygen-rich atmosphere aided synthesis

3. Energy sources included lightning

4. Protobionts preceded true cells

TLS Online TPP Program

#Question id: 40513

#Environmental Science

Consider the following statements about primordial Earth:

1. Atmosphere was reducing

2. UV radiation was intense

3. Ozone shield was present

4. Volcanic gases dominated

TLS Online TPP Program

#Question id: 40514

#Environmental Science

Which statements correctly describe protobionts?

1. Membrane-like structure

2. Pre-cellular organization

3. Fully functional cells

4. Chemical aggregation

TLS Online TPP Program

#Question id: 40515

#Environmental Science

Match the taxonomist with their contribution

Column I	Column II
A. Linnaeus	1. Phylogenetic classification
B. Whittaker	2. Binomial nomenclature
C. Hennig	3. Five kingdom classification
D. Mayr	4. Biological species concept

TLS Online TPP Program

#Question id: 40516

#Environmental Science

Match the taxonomic category with example

Column I	Column II
A. Family	1. Felidae
B. Order	2. Carnivora
C. Class	3. Mammalia
D. Genus	4. Panthera