Prospective parents using in vitro fertilization (IVF) will soon be able to select embryos based on their potential risk for ...

Medically reviewed by Anju Goel, MDMedically reviewed by Anju Goel, MD Genes are the basic units that determine the traits that we inherit from our parents. They contain coded information found in ...

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A microscopic piece of genetic material known as the Y chromosome made headlines last week. It is nothing new or rare; every man has one in practically every cell, or he would not be a man.

Chromosomes themselves are made up of proteins and DNA that carry your genetic information from cell to cell. When an egg is fertilized, the egg itself always contributes an X chromosome ...

Some chromosomes have more genes than others. About 98% of human DNA does not code for anything. Introns make up about 24% of your DNA. These are segments within genes that do not code for a ...

Chromosomes are threadlike structures made up of DNA. While all human chromosomes contain repeats, more than 30 million letters of the Y chromosome — out of 62.5 million — are repetitive ...

Chromosome 1 is the largest human chromosome, made up of around 249 million nucleotide base pairs and representing approximately 8% of the entire DNA content within a human cell. Research into ...

Much of the Y’s bulk is made up of pieces of DNA that have a tendency to duplicate themselves, in an endless copy-and-paste fest. In many organisms, X and Y chromosomes can jettison extra ...