Weil is less enthusiastic about white, or button, mushrooms, a species of mushroom that also includes Portobellos and criminis. âButton mushrooms do possess some health benefits, but not the general health benefits found in Asian mushrooms,â Weil says.
What sort of information do they encode, and how can this affect a cell's characteristics and activities? Some genes enable cells to make proteins needed for basic functions; dubbed housekeeping genes, they are active in many types of cells. Other genes, however, are inactive most of the time. Some genes play a role in early development of the embryo and are then shut down forever. Many genes encode proteins that are unique to a particular kind of cell and that give the cell its character - making a brain cell, say, different from a bone cell. A normal cell activates just the genes it needs at the moment and actively suppresses the rest.
genes are segments of DNA found on chromosomes that carry information for protein production that responsible for the inheritance of specific traits or alleles. the alternative or different forms of a gene is called an allele, each organism inherits an allele from each parent, some alleles are originated from: 1- genes found on autosomal chromosomes and they follow patterns of inheritance like mendal's laws 2- some alleles are originated from genes which can be found on sex chromosomes those follow different patterns of inheritance because sometimes some genes can be found only on the X chromosome and not the Y chromosome, so this trait is linked to the gender of the individual . example of sex linked trait hemophilia