1. Methane,ammonia,hydrogen,water vapour
2. Methane,nitrogen,hydrogen,water vapour
3. Ammonia,carbon dioxide,nitrogen,water vapour
4. Methane,ammonia,nitrogen,water vapours
Methane,ammonia,hydrogen,water vapour
1. 5:4:1
2. 2:1:2
3. 2:5:4
4. None of these
2:1:2
1. Nitrogen
2. Oxygen
3. Carbon dioxide
4. Hydrogen
Carbon dioxide
1. Darwin
2. Stanley Miller and Horald C.Urey
3. Melvin
4. Fox
Stanley Miller and Horald C.Urey
1. Glyceine
2. Aspartic acid
3. Glutamic acid
4. Alanine
Glutamic acid
1. 2.9 to 3.3 billion years ago
2. 3.3 to 3.5 billion years ago
3. 3.9 billion years ago
4. 4.3 billion years ago
3.3 to 3.5 billion years ago
1. First biogenesis but abiogenesis later on
2. Abiogenesis first and then biogenesis
3. Abiogenesis first,but biogenesis ever since
4. Biogenesis ever since
Abiogenesis first,but biogenesis ever since
1. RNA directed protein
2. RNA directed DNA
3. DNA directed proteins on DNA template
4. DNA directed proteins directly
DNA directed proteins on DNA template
1. Fungi and plants
2. Animals and plants
3. Unicellular eukaryotes
4. Fungi,plants animals and protists
Fungi,plants animals and protists
1. Breakdown into monomers
2. Vary in composition
3. Accumulate organic monomers from the environment
4. Reproduce themselves
Reproduce themselves