Which of the following was formed in S Miller’s experiment?
Amino acids
Nucleic acids
UV radiations
Microspheres
Related Questions
The …A… from the sun broke up water into hydrogen and oxygen and the …B… escaped. Oxygen combined with ammonia and methane to form …C… . CO and others. The ozone layer was formed. As it cooled, the water vapour fell as rain, to fill all the depressions and form …D… Choose the correct option for A,B,C and D to complete the given paragraph, to NCERT textbook
A-IR rays, B-lighter , C-water, D-oceans
A-UV rays, B-lighter , C-water, D-oceans
A-UV rays, B-heavier , C-water, D-oceans
A-UV rays, B-heavier , C-water, D-oceans
The concept that the species have changed over a long period of time is know as
Ecosystem
Spontaneous generation
Organic evolution
Genetic recombination
Which theory arguments that life on earth came from outer space?
Abiogenesis
Panspermia
Endosymbiosis
Spontaneous Generation
Which units are used to measure the stellar distances
Metres
Light years
Oparin and Haldane’s theory is also called
Panspermia Theory
Primordial Soup Theory
Spontaneous Generation Theory
Endosymbiotic Theory
Origin of life as a result of chemical evolution was properly explained by
I. Fox II. Oparin
III. Wateson IV. Haeckel
V. Mendel VI. Crick
Choose the correct option
I and II
III and IV
V and VI
Only II
First life on the earth originated from non-living matters has been explained by
Theory of biogenesis
Theory of abiogenesis
Theory of special creation
Theory of extraterrestrial origin
Life appeared ________ years after the formation of earth
4.5 billion
1 billion
500 million
2 billion
Theory of special creation arguments that: I. all living organisms were created as such, II. the diversity was always the same since creation, III. earth is 4000 years old. Choose the right option to complete the given statement
I and II
II and III
I and III
I, II and III
Which of the following best describes the significance of coacervates in the context of the origin of life?
They are fossilized evidence of the earliest life forms on Earth.
They prove that RNA was the primary genetic material in early life.
They demonstrate how membrane-bound compartments, crucial for cellular life, could have arisen spontaneously from organic molecules.
They explain the mechanism by which the first self-replicating molecules were formed.
