Which one of the following experiments suggests that simplest living organisms could not have originated spontaneously from non-living matter ?
- Microbes did not appear in stored meat
- Larvae could appear in decaying organic matter
- Microbes appeared from unsterilized organic matter
- Meat was not spoiled, when heated and kept sealed in a vessel
The Correct Option is D
Solution and Explanation
This experiment, often referred to as Louis Pasteur's experiment, demonstrated that microbial growth did not occur in sealed, heated containers of broth, providing evidence against spontaneous generation or abiogenesis (the idea that life could arise from non-living matter spontaneously). The other experiments listed involve different aspects of the debate on spontaneous generation but do not provide evidence against it like Pasteur's experiment did.
So, the correct option is (D): Meat was not spoiled, when heated and kept sealed in a vessel
Top Questions on evolution
- Sweet potato and potato represent a certain type of evolution. Select the correct combination of terms to explain the evolution.
- NEET (UG) - 2025
- Biology
- evolution
- Read the following passage and answer the questions that follow.
According to evolutionary theory, every evolutionary change involves the substitution of a new gene for the old one and the new allele arises from the old one. Continuous accumulation of changes in the DNA coding for proteins leads to evolutionary differences. The chemical composition of DNA is basically the same in all living beings, except for differences in the sequence of nitrogenous bases. Given below are percentage relative similarities between human DNA and DNA of other vertebrates:
- Land reptiles which went back into water about 200 mya to evolve into fish-like reptiles were :
- If a natural population with 200 individuals is in Hardy-Weinberg equilibrium for a gene with two alleles A and a, and with the gene frequency of allele A of 0.8, the genotype frequency of Aa will be :
- The animals that evolved into the first amphibians during evolutionary history were:
Questions Asked in NEET exam
A sphere of radius R is cut from a larger solid sphere of radius 2R as shown in the figure. The ratio of the moment of inertia of the smaller sphere to that of the rest part of the sphere about the Y-axis is :
- NEET (UG) - 2025
- Moment Of Inertia
- Frogs respire in water by skin and buccal cavity and on land by skin, buccal cavity and lungs.
- NEET (UG) - 2025
- Animal Physiology
- Given below are two statements:
Statement I: Fig fruit is a non-vegetarian fruit as it has enclosed fig wasps in it.
Statement II: Fig wasp and fig tree exhibit a mutual relationship as the fig wasp completes its life cycle in the fig fruit and the fig fruit gets pollinated by the fig wasp. - An oxygen cylinder of volume 30 litre has 18.20 moles of oxygen. After some oxygen is withdrawn from the cylinder, its gauge pressure drops to 11 atmospheric pressure at temperature \(27^\circ\)C. The mass of the oxygen withdrawn from the cylinder is nearly equal to: [Given, \(R = \frac{100}{12} \text{ J mol}^{-1} \text{K}^{-1}\), and molecular mass of \(O_2 = 32 \text{ g/mol}\), 1 atm pressure = \(1.01 \times 10^5 \text{ N/m}^2\)]
- NEET (UG) - 2025
- Ideal-gas equation and absolute temperature
- A wire of resistance \(R\) is cut into 8 equal pieces. From these pieces, two equivalent resistances are made by adding four of these together in parallel. Then these two are added in series. The net effective resistance of the combination is:
- NEET (UG) - 2025
- Resistance
Concepts Used:
Origins of Life
Origin of Life is considered as one of the most important phenomena that happened in the history of biology. Through this phenomena we got to know about the existence of atmosphere, special gases, different forms of species, different galaxies and so on.
Evolution:
Over the years there have been changes that happen in the formation or the characteristics of the species and because of which there have been the development of new kinds of species and all this happened through the involvement of the natural process and thus came to be known as the evolution.
Charles Darwin Theory of Evolution:
Charles Darwin in his book “On the origin of the species” tells about how the organisms have evolved over the different generations by inheriting the different forms of characteristics such as physical or the different behavior traits.