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Q: Knowledge-Seeker-ga .......... in regards a previous question you dealt with ( Answered 5 out of 5 stars,   0 Comments )
Subject: Knowledge-Seeker-ga .......... in regards a previous question you dealt with
Category: Family and Home > Parenting
Asked by: johnfrommelbourne-ga
List Price: $8.00
Posted: 21 Dec 2003 07:59 PST
Expires: 20 Jan 2004 07:59 PST
Question ID: 289251
Dear Knowsey, ( I suppose all your friends call you that). As I
remember I think I agreed to offer you another question at mid-range
degree of difficulty and mid-range price,yes?no? If yes then on behalf
of my  baby sister could you please attempt this one, or if unsuitable
just pass it up and I will rewrite it another way for general

 Is there any methods by which prospective parents trying to conceive
can go through a process that is more likley to see a baby boy born
rathar than a girl. They love girls but three already

Request for Question Clarification by knowledge_seeker-ga on 21 Dec 2003 13:44 PST
Hi John!

Just letting you know I've seen your question and I'd be happy to work
on it. It won't be today, but I'll certainly get to it tomorrow.
Err..that's my tomorrow, which is probably your today given that I am
here and you are way over there. Okay? ;-)

-Knowsey ~
Subject: Re: Knowledge-Seeker-ga .......... in regards a previous question you dealt with
Answered By: knowledge_seeker-ga on 22 Dec 2003 12:50 PST
Rated:5 out of 5 stars
Hi John, 

Well, there sure is plenty of information on this, but wow, it?s hard
to find it without the attached moral arguments for and against the
whole idea of choosing the sex of your child.  It is quite a
contentious issue!  Anyway, I?ve done what I can to present you with
just the facts.

Apparently there are real methods for selecting or controlling the sex
of a baby that have shown reliable results. These involve medical
procedures and, depending on where your sister lives, she may or may
not have access to them.

Here?s a run down of the different techniques and procedures. 

Three types of sex selection: 1) pre-natal testing and termination of
pregnancy, 2) pre-implantation genetic diagnosis and selection of
embryos (PGD), and 3) sperm sorting-the selection of sperm carrying
either an X or Y chromosome.


This is exactly what the name implies. After the woman becomes
pregnant, the embryo is genetically tested and if it is the ?wrong?
sex, the pregnancy is terminated. Where other techniques are
available, this method is generally considered unacceptable. However,
its use is widespread in countries where more sophisticated techniques
are not available and where sex selection (usually for boys) is a
cultural preference.


In this case, eggs are fertilized in vitro, their DNA is checked for
sex, and then the appropriate egg(s) are implanted into the woman.

Sydney IVF uses pre-implantation genetic diagnosis (PGD) to assist
parents in selecting the sex of their child for family balancing.
Compared to other sex selection methods, PGD offers an extremely high
accuracy rate.




Sperm sorting basically separates the ?girl? sperm from the ?boy?
sperm so that doctors in a fertility clinic can impregnate the woman
with only one or the other. The fertilization can either be done
intrauterine or in vitro.
Sperm sorting can be carried out either by putting live sperm in a
dense liquid and spinning it in a centrifuge to separate the girls
from the boys or by a patented  ?Microsort? method where they add a
fluorescent dye to the sperm and use ?flow cytometer? in which a laser
beam causes the dyed DNA to glow.



Then of course there are the litany of folk methods and other home
techniques which some people believe can influence the sex of the
child. As near as I can tell, none of these have been statistically
proved to influence the sex of the baby.

I?ll give you a handful of sites anyway in case your sister is more
interested in trying such a technique rather than go through a bunch
of medical procedures.

Choosing your baby's sex: The folk wisdom

 ?Remember, none of the popular sex selection methods guarantee
results. Some techniques even contradict each other. "You can find a
small study to support any theory," says Dr. Weinberg of the National
Institute of Environmental Health Science... To follow any of these
methods, you have to be very sensitive to when you ovulate. You can
buy predictor kits, but most people rely on charting their basal body
temperature (BBT) and monitoring their cervical mucus..?

Choosing your baby's sex: What the scientists say

Choosing The Sex Of Your Baby

Planning sex of baby -- the Barthakur method


Q&A: Preimplantation Diagnosis and Sex Selection
Prepared by the Center for Genetics and Society

Fertility Institute - Sex (Gender) Selection Employing PGD and Sperm Separation


?Study findings suggest that manipulating the timing of insemination
during the cycle cannot be used to affect the sex of offspring.?

Sex ratio associated with timing of insemination and length of the
follicular phase in planned and unplanned pregnancies during use of
natural family planning.

?CONCLUSIONS. ? For practical purposes, the timing of sexual
intercourse in relation to ovulation has no influence on the sex of
the baby.?

Timing of sexual intercourse in relation to ovulation. Effects on the
probability of conception, survival of the pregnancy, and sex of the

Thanks for your question John. And thank you for requesting me! If
there?s anything else you need, just yell.


search terms:

sex selection baby
sex selection family balancing
techniques influence sex baby
?sperm sorting? 
pre-implantation genetic diagnosis
family balancing
johnfrommelbourne-ga rated this answer:5 out of 5 stars
Dear Knowsey, 
 I have lost track of where I was with you as for some reason the last
question you did for me, which i bthink was this one inexplicably I
could not acces to rate when you first tackled it in December. I think
we are all square now yes?/ no?? Nice work on subject by the way

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