Are genes responsible for the formation of structure of nucleus & cell?

Question

Are genes responsible for the formation of structure of nucleus & cell?

Answer 1

Yes

Answer 2

Not genes, but rather certain regions of DNA that are expressed to form the structure of the cell. Structure always conforms to the function.

Answer 3

No. Gene is an old concept, but it is still useful as long as you keep its proper definition in mind. A gene is a unit inheritable characteristic. Physically, a gene typically has a particular location on a particular chromosome. A more modern closely related concept is a genome. A genome is a particular sequential section of a DNA molecule that encodes the sequence of amino acids in one particular protein.

Genomes and genes are very important, but contrary to what some genetics textbooks might suggest, they do not determine everything. A simple analogy helps to explain the situation. A computer with no software (no programs) doesn't do much of anything. Software doesn't do anything without a computer. Like a computer, a cell is a pretty complicated structure without taking the genes into account. And the genes alone (or the DNA set from a cell) won't do anything at all without a properly functioning cell.

Sometimes people get the idea that what they are comes 50% from the father and 50% from the mother. This is not exactly true. If you think genes determine everything, then it is true for girls and almost true for boys. There is a difference in the quantity of genetic information in the X and Y chromosomes (you can remember this by comparing the four "arms" on the letter X with the three "arms" on the letter Y). But the fact is the genes are not everything, and people get their basic cells with complicated cellular structure and functioning from their mothers only.

If you want to get a little more information on this, you might search for information about mitochondria, for example. The mitochondrion is an important organelle within the cell. It has its own DNA. It plays a very important role in the energy regime of the cell (just like a power generating station can play an important role in the functioning of a city). All your mitochondria are descendants of the set of mitochondria you originally received from your mother.

Answer 4

Yes.

DNA is a code for making proteins.