Real Man

The difference between men and women

     I remember that I have compared the intelligence between men and women.The title of the acticle is Men VS Women: Who is Smarter?.Well this acticle will compare based on the body of men and women,such as the DNA.I agree that there should be a relation between the body and the mind.So it is reasonable that we should know more about the structure of the body of men and women.

     Q:Can you give us some examples about the differences?

     A:.Yes.In spite of being, on average, bigger and generally stronger than women, men generally don’t live as long. This is true all over the world, not just in Western countries. Some researchers theorize that this is in part due to physiological differences between men and women. It may also be related to the way men and women approach relationships. Women tend to build strong support networks that they can turn to for assistance during crises. This network may help them to live longer lives .

     In addition, according to the World Health Organization (WHO), three times as many men as women die in car accidents, and two times as many men drown. Male pedestrians are also more likely to die after being struck by cars. The WHO attributes this to men being more likely to take risks than women are.

     Q:What are the ideas of  experts?

     A:The differences between men and women go beyond what you can see. Men and women are different at the cellular level. Inside every cell of your body is DNA, which is like an instruction manual for all of your body’s structures and functions. A typical human’s DNA is contained in 23 pairs of chromosomes. The twenty-third chromosomal pair determines whether you are a male or a female. Except in the case of rare anomalies, females have two X chromosomes, and males have one X chromosome and one Y chromosome.

     However, recent studies suggest that the Y chromosome isn’t going anywhere and that it still carries important information in the human genome. It probably started out looking more like an X, but that was around 300 million years ago, when sex chromosomes first appeared in human cells [Source: ABC Online] Since then, the Y has gotten smaller as some of the genes it shares with the X have disappeared.

     But several genes, particularly those related to sperm production and other masculine traits, reside only on the Y chromosome, not on the X. A gene known as the sex-determining region of the Y chromosome (SRY), for example, starts the cascade of testosterone that makes male fetuses different from females.

     The Y chromosome includes a gene that relates to the brain, although scientists haven’t determined precisely what this gene does. The Y also contains copies of some of its more important genes, since unlike an X it can’t simply replace faulty genes by borrowing some from its neighbor. According to Steve Rozen of the Massachusetts Institute of Technology (MIT), the Y chromosome will probably continue to survive for at least 50 or 60 million years.

     Scientists are still discovering how the differences between the DNA of men and women affect their physiology. You can learn more about these differences and other gender-related topics by following the links in the next section.