Nature: No Gay Gene.

[Stryder50]

Try this;
Nature's preference is towards the reproductive half of a bi-sexual species, i.e. the female. So the eggs of a female always contain an "X" chromosome which blueprints to make a female of the species.

The male sperm might contain and "X" chromosome and reinforce the making of a female, or a "Y" chromosome which sets the stage for altering the basic female pattern into the "mutant" male deviations.

However, for the transformation from female to male to go perfect, depends upon enough male hormone, testosterone during both the pregnancy (when genitalia and brain structure happens) and during puberty when the hypothalamus, which triggers sexual attraction, needs to be 'flipped' from basic female attraction to a male into the altered/mutated status of being attracted to a female.

If the matrix of genes and hormones are not sufficient to make the needed development/transitions both in the womb and during puberty/adolescences, than there may be sexual orientation/attraction "confusion".

I'm running the thumbnail outline here but all much better explained this rather slim volume;
Brain Sex: The Real Difference Between Men and Women Paperback – August 1, 1992
...
https://www.amazon.com/Brain-Sex-Difference-Between-Women/dp/0385311834&tag=ff0d01-20

See also;
Brain Sex - Goodreads | Meet your next favorite book

and

BRAIN SEX | Kirkus Reviews

 

[TheProgressivePatriot]

Being a drunk is considered a disease, even if one has a "genetic" predisposition towards being a drunk. Drinking and driving is regarded as wrong, no matter what anyone wishes to believe concerning drinking. It is now considered okay to act on being homosexual, and yet when it is demonstrated that older men prey on naive youths, it is regarded as fine as long as the individuals involved are not priests and then the excuse is that priests who have homosexual relations with young men and boys are not homosexuals ----- they merely only have access to young men and boys................. The reality is that what is wrong is wrong no matter who is doing it and when.

 

[TheProgressivePatriot]

Try this;
Nature's preference is towards the reproductive half of a bi-sexual species, i.e. the female. So the eggs of a female always contain an "X" chromosome which blueprints to make a female of the species.

The male sperm might contain and "X" chromosome and reinforce the making of a female, or a "Y" chromosome which sets the stage for altering the basic female pattern into the "mutant" male deviations.

However, for the transformation from female to male to go perfect, depends upon enough male hormone, testosterone during both the pregnancy (when genitalia and brain structure happens) and during puberty when the hypothalamus, which triggers sexual attraction, needs to be 'flipped' from basic female attraction to a male into the altered/mutated status of being attracted to a female.

If the matrix of genes and hormones are not sufficient to make the needed development/transitions both in the womb and during puberty/adolescences, than there may be sexual orientation/attraction "confusion".

I'm running the thumbnail outline here but all much better explained this rather slim volume;
Brain Sex: The Real Difference Between Men and Women Paperback – August 1, 1992
...
Amazon.com

See also;
Brain Sex - Goodreads | Meet your next favorite book

and

BRAIN SEX | Kirkus Reviews

You don't say? So that says what about a gay gene?

 

[Stryder50]

Try this;
Nature's preference is towards the reproductive half of a bi-sexual species, i.e. the female. So the eggs of a female always contain an "X" chromosome which blueprints to make a female of the species.

The male sperm might contain and "X" chromosome and reinforce the making of a female, or a "Y" chromosome which sets the stage for altering the basic female pattern into the "mutant" male deviations.

However, for the transformation from female to male to go perfect, depends upon enough male hormone, testosterone during both the pregnancy (when genitalia and brain structure happens) and during puberty when the hypothalamus, which triggers sexual attraction, needs to be 'flipped' from basic female attraction to a male into the altered/mutated status of being attracted to a female.

If the matrix of genes and hormones are not sufficient to make the needed development/transitions both in the womb and during puberty/adolescences, than there may be sexual orientation/attraction "confusion".

I'm running the thumbnail outline here but all much better explained this rather slim volume;
Brain Sex: The Real Difference Between Men and Women Paperback – August 1, 1992
...
Amazon.com

See also;
Brain Sex - Goodreads | Meet your next favorite book

and

BRAIN SEX | Kirkus Reviews

You don't say? So that says what about a gay gene?

View attachment 457365

That while there may not be a "gay gene, or genes" yet discovered, that in many cases there may be a biological cause for some gay sexual orientation.

There may also be a choice factor in some cases, as well as just plain mental confusion in others.

 

[Bob Blaylock]

Nature's preference is towards the reproductive half of a bi-sexual species, i.e. the female. So the eggs of a female always contain an "X" chromosome which blueprints to make a female of the species.

The male sperm might contain and "X" chromosome and reinforce the making of a female, or a "Y" chromosome which sets the stage for altering the basic female pattern into the "mutant" male deviations.

The way you phrased this seems to suggest that you think this applies to all forms of life which have male and female organisms, and a sexual component to their life cycle.

Some forms of life, including even some animals, have different systems for determining which sex a given organism will become. The XY/XX model applies to all mammals, including humans.

In birds, sex is determined somewhat differently, in what is described as the ZW system (as opposed to the XY system). Unlike the X and Y chromosomes, I don't think the W and chromosomes actually have the shapes opt the letters, the letters were just chosen because they are adjacent to X and Y, and used to distinguish this from the XY system.

In a reversal of the XY system, in birds, it is the homogametic sex that is male (ZZ), and the heterogametic ZW sex is female.

The ZW system applies, also, to some reptiles, some insects, some fish, some crustaceans, and some flatworms.

There are some other ways in which some other forms of life determine the sex of any given organism, some of which are not genetic. In alligators, it's dependent on the temperature at which the eggs incubate. The mother alligator makes a nest with some eggs deep inside, where they are kept warmer, and those develop into males; those more toward the outside of the nest, where it is cooler, develop into females.

 

[Stryder50]

Good point.
Was mostly mammals and especially with regard to humans. See my linked sources.