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Explanation
In 1953, the structure of DNA was discovered. This breakthrough discovery was made by James Watson and Francis Crick, along with the help of Rosalind Franklin's X-ray crystallography images. They proposed the double helix structure of DNA, which is the fundamental basis for understanding how genetic information is stored and transmitted. This discovery revolutionized the field of genetics and laid the foundation for modern molecular biology.

Explanation
Bacteria and some fungi are living organisms that are used to make cheese. These organisms play a crucial role in the cheese-making process. Bacteria are responsible for acidifying the milk, which helps in coagulating the milk proteins. This coagulation is necessary to form curds, which are then pressed and aged to create cheese. Some fungi, such as Penicillium, are used to develop the characteristic flavors and textures of certain types of cheese. Therefore, bacteria and fungi are essential in the production of cheese.

Explanation
A typical bacterium is approximately 1 micrometer in size. Bacteria are microscopic organisms that can only be seen under a microscope. They are much smaller than a millimeter, nanometer, or picometer. A micrometer, also known as a micron, is equal to one millionth of a meter. This size is typical for bacteria, which are single-celled organisms that can have various shapes and structures.

Explanation
Bacteria are not able to live on teflon because it is a non-stick material that is resistant to microbial growth. Teflon has a smooth surface that prevents bacteria from adhering to it, making it an inhospitable environment for bacterial survival. Unlike milk, which is a nutrient-rich medium for bacterial growth, and pesticides, which may have toxic effects on bacteria but still allow some survival, teflon provides no favorable conditions for bacteria to thrive. Acetone, although it can kill some bacteria, is not the correct answer because it does not completely prevent bacterial growth like teflon does.

Explanation
Biocon was founded in Bangalore in the year 1978.