3 years ago

Compare and contrast solids and liquids

1 answer:

4 0

Solids have a definite shape, unlike liquids and gases. They also have a definite volume, like liquids, but unlike gases.

Liquids don't have any definite shape, like gases, but unlike solids. They also have a definite volume, like solids, but unlike gases.

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Option (1), (2) and (3).

Explanation:

DNA is the genetic material of all the living organisms present on earth. The DNA contains the nitrogenous bases, pentose sugar and the phosphate group. DNA strands runs in the opposite direction and shows polarity.

Watson and Crick explain the structure of DNA based on the X ray diffraction produced by Rosalind. According to the structure, chromosomes are present in the nucleus and contains the DNA and wrapped around the proteins. The genes is considered as the functional segment of DNA.

Thus, the correct answer is option (1), (2) and (3).

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