Why is biochemical purification of one gene away from the other genes in a cell more challenging than biochemical purification of one protein away from the other proteins in a cell?

a)A cell has many more genes that it has proteins.
b) DNA is very unstable and is likely to be broken down during the purification process.
c) Proteins are larger molecules than genes.
d)The chemical nature of all genes is very similar; the chemical nature of various proteins can be very different.

The purification of one gene from the other genes is more challenging than the biochemical purification proteins because the chemical nature of all genes is very similar (Option d).

In conclusion, the purification of one gene from the other genes is more challenging than the biochemical purification proteins because the chemical nature of all genes is very similar (Option d).

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d) The chemical nature of all genes is very similar; the chemical nature of various proteins can be very different.

Explanation:

The isolation of proteins requires protein separation techniques and identification which can identify individual proteins because of their distinct differences as well as different charges but in the case of genes, their chemical nature comprising of DNA are the same.

the oldest known insects are believed to live around 400 millions ago as suggested by the fossil records.   some plants having woody stems also evolved during this time.

after the evolution of insects the first four legged species or the tetrapods evolved in shallow freshwater habitats from the intermediate species approximately 397 million years ago. the tetrapods went on conquering the land giving rise to amphibians, reptiles, mammals and birds.

the major split in tetrapods first occurred 340 million years ago branching off from amphibians.

363 million years ago when the carboniferous period began the insects started roaming on land and taking flights, following which the four limbed tetrapods adapted in the terrestrial habitat.