Male smokers might want to start worrying about the tiniest and “manliest” of the 46 chromosomes — the Y chromosome. A new study published today in Science indicates that men who smoke ...

The Y chromosome is passed down exclusively from father to son. University of Arizona The human sex chromosomes, X and Y, evolved over the past 300 million years from the other, non-sex chromosomes.

Chromosome 2 is the second largest of the 46 chromosomes found in human cells.

Women may think of men as primitive, but new research indicates that the Y chromosome — the thing that makes a man male — is evolving far faster than the rest of the human genetic code. A new ...

Why is the Y chromosome disappearing? The Y chromosome has seen significant changes over the course of human evolution. "In comparison to the X, the Y is tiny.

Each eukaryotic chromosome is composed of DNA coiled and condensed around nuclear proteins called histones. Humans inherit one set of chromosomes from their mother and a second set from their father.

Scientists have fully sequenced the Y chromosome for the first time, uncovering information that could have implications for the study of male infertility and other health problems.

The Y chromosome can disappear over time in human males, which may introduce a number of health problems. While the exact trigger for such degeneration is unknown, environmental factors can play a ...

The chromosome associated with male development, which is the last mysterious piece of the human genome, has been fully sequenced by a team of more than 100 researchers around the world, including ...

Chromosomes Blogging the Human Genome: Why do we have two fewer chromosomes than our closest primate relatives? The chromosomal evidence that mankind nearly went extinct.

It's common for men to lose the Y chromosome in their cells as they age. But a new study finds a strong link to bladder cancer, and a potential therapy for it.

Chromosome 4 is the fourth largest of the 23 pairs of chromosomes in humans. Chromosome 4 is made up of over 186 million base pairs, the building blocks of DNA which are tightly packed and super ...