Man And Woman Are Diffrerent Phenotypes

Men And Women’s Brains Age Differently


A. The brain on age
http://www.sciencenews.org/view/generic/id/36708/title/This_is_the_brain_on_age

- "The activity of genes in men's brains begins to change sooner than it does in women's brains, a new study shows."

- "The types of genes that change with age also differ between the sexes."


B. Human male and female are phenotypes
http://blog.360.yahoo.com/blog-P81pQcU1dLBbHgtjQjxG_Q--?cq=1&p=143

May 5, 2005 Dov Henis, biologicalEvolution forum

(a) From Scientific American, May 2005, p.22, "His Brain, Her Brain", By L. Cahill :

* "It turns out that male and female brains differ quite a bit in architecture and activity."

* "Neuroscientists are uncovering anatomical, chemical and functional differences between the brains of men and women".

* "Several intriguing behavioral studies add to the evidence that some sex differences in the brain arise before a baby draws its first breath".

(b) Two of the many definitions of "phenotype":

* "The detectable expression of the interaction of genotype and environment constituting the visible characters of an organism".

* "The observable characteristics, appearance or constitutional, of an organism due to the interaction between the genotype and the environment."

(c) I am not well informed in the matters of the subject article but plain common sense, without need to resort to verbiage, suggests that a comparison of organism's male's and female's genomes reveals, or would most likely reveal, a set of expressions of genes of different patterns, evolved in the course of different physiological adaptive demands/preferences of male and female.


C. From "Culture, A Ubiquitous Biological Entity"
http://blog.360.yahoo.com/blog-P81pQcU1dLBbHgtjQjxG_Q--?cq=1&p=262

Culture is the universal driver of genetic evolution.

The major course of natural selection is not via random mutations followed by survival, but via interdependent, interactive and interenhencing selection of biased genes replication routes at their alternative-splicing-steps junctions, effected by the cultural feedback of the third stratum multicells organism or monocells community to their second stratum genomes and finally to their prime stratum genes, organisms.

There is a basic, sex-related difference, between women's and men's cultures, between woman's and man's genes,in addition to the therefore inherent physiological differences between their brains.


Dov Henis

http://blog.360.yahoo.com/blog-P81pQcU1dLBbHgtjQjxG_Q--?cq=1

Read the news article that this opinion was posted about:
Men And Women With History Of Concussion Mend Differently, Study Finds - Concussion Treatment Needs To Be More Individualized

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