51 results found for Genetic Tests.

Genetics and Genealogy

Genetics and Genealogy

DNA testing for genealogical purposes is a fairly recent technological advancement, which can provide a means of breaking through “brick walls.” It also provides a level of scientific certainty of connections to family groups within a surname.

DNA has been used to identify people for many years in forensics, but tests for genealogical purposes were not publicly available until 2000. Advances have been made at a very rapid pace since then, though limitations still exist.

Updated: April 28, 2022

Is Intelligence Inherited? A Genetic Explanation

Hereditary Intelligence_Featured

Do you ever wonder if your child's cognitive ability was inherited or if it's based on environmental factors? In fact, human intelligence is a fairly equal mix of genetics and environmental influences. Genetic differences in cognition are more likely to be passed on from mother to child than from father to child (so for all the moms reading this, you were right all along).

More: Is Personality Genetic?

Updated: February 12, 2020

What To Ask Your Doctor About Prenatal Genetic Testing

Mom and dad receiving genetic testing results from female doctor

Whether you’re pregnant or planning to grow your family soon, many couples will decide to do prenatal genetic testing. Genetic testing can give you information regarding what your future child may be predisposed to or whether a current fetus has genetic disorders. If you’re ready to make the leap here are eight questions to ask your doctor to be fully prepared.

More: Will My Child Be Athletic? A Genetic Explanation

Updated: February 12, 2020

How to Prepare for a Prenatal Genetic Counseling Session

couple at prenatal genetics counseling session

Learning you are pregnant can be one of the most exciting times in your life. There is so much to think about, from wondering what gender the baby will be to daydreaming about how she will look on her first day of school.

Pregnancy can also introduce anxieties that you may have never considered. This is especially true if you have concerns, including how your age, family history, and medical history could affect your unborn child.

In this article, you will find:

Diagnostic Tests During Pregnancy

How Diagnostic Tests During Pregnancy Work

What are diagnostic tests?

Diagnostic tests are tests that involve taking a sample of either the placenta, the amniotic fluid, or fetal blood. The samples are then sent away and examined in a laboratory for chromosomal or genetic abnormalities. The two main diagnostic tests are amniocentesis and chorionic villus sampling, or CVS.

Updated: February 12, 2020

The Causes of Down Syndrome During Pregnancy and How to Test for It

Baby Boy With Down Syndrome in NICU

You may have heard about genetic testing for Down Syndrome during pregnancy. But what exactly is Down Syndrome? What are your chances of birthing a baby with this condition? Researchers do not know a lot about what causes Down Syndrome, but they do know a lot about how it works. There is also a lot of knowledge out there about some specific risk factors that increase your chances of having a baby with Down Syndrome. 

More: Screening Tests During Pregnancy

In this article, you will find:

Understanding Your Blood Test

Cholesterol tests

Understanding Your Blood Test

We hear lots of numbers being tossed around when it comes to cardiovascular health, and without a clear understanding of what they mean, this information can be downright overwhelming. Key players include total cholesterol, LDL and HDL cholesterol, cholesterol ratio, triglycerides, homocysteine, C-reactive protein, and blood pressure.


Genealogy: Taking a DNA Test

Genealogy: Taking a DNA Test

Testing is best done through individual surname projects whenever possible. Surname administrators carry databases of all tests done to date under their surname project and have many tools available to them to compare results. They usually have close ties with family associations and researchers with expertise in the particular family. This is extremely important, as DNA results only become meaningful when coupled with traditional genealogical research.

Updated: April 25, 2022

How Tall Will My Baby Be? (A Genetic Explanation for Height)

parents measuring baby's height

When a soon-to-be-parent learns they’re expecting a child, their brains go into overdrive—including wondering what—or who!—their child will look like. Brown hair? Blonde hair? Red hair? No hair? These genetic and inheritance questions may also make you wonder, "How tall will my baby grow up to be?" Will your baby be tall or short like me/the other biological parent? 

I confess: I definitely wondered, and still do: How tall will my baby be? 

Updated: August 5, 2020

My Baby Looks Nothing Like Me: A Genetic Explanation

Help! My baby doesn't look like me!

The creation of a human body goes far beyond simple building blocks. For around nine months, the womb meticulously assembles microscopic fragments of DNA from both parents to create a unique individual. During that time, parents anticipate how the baby will look. Will she be tall like the father, have dark skin like the mother, or soft green eyes like both? 

Excitement builds as the time approaches to lay eyes on your mini-you…until your baby is born, and you notice, “My baby looks nothing like me!” 

High-Risk Tests Performed During Pregnancy

High Risk Ultrasounds

High-Risk Tests Performed During Pregnancy

In addition to the routine history, the doctor will check for any unusual or serious medical conditions that the patient may have or that could be genetically related. For example, if you have a history of diabetes, sickle cell anemia, tuberculosis, blood clots, high blood pressure, previous abdominal or surgical history, or anything that might show up as a warning signal, your doctor will be paying closer attention to these areas.

What Is Chorionic Villus Sampling (CVS)?

Medical specialists near ultrasound machine in the hospital ward

Chorionic villus sampling (CVS) is a prenatal diagnostic test that can be given as early as the 9th week of pregnancy to identify or rule out certain birth defects, including genetic conditions and chromosomal abnormalities. CVS is a relatively standard procedure that can be done as early as the 9th week of pregnancy but is typically done between 10-12 weeks of pregnancy. 

In this article, you will find:

Screening Tests During Pregnancy

Screening tests in First Trimester of Pregnancy

What is screened for

In addition to Down syndrome, screening tests also assess the risk of another chromosomal abnormality called trisomy 18. Babies with this condition have more severe mental and physical abnormalities than babies with Down syndrome and seldom survive beyond a year. The condition is rare, with each year around 1 in 6000 babies born with trisomy 18, compared to 1 in 800 babies born with Down.

Updated: June 21, 2021

5 Family History & Genealogy Podcasts to Listen to This Fall

woman listening to genealogy podcast

Genealogy and family history have become hot topics for many families thanks to affordable and easy ways to test your DNA. These tests allow us to do everything from discovering how prone we are to like a certain ice cream flavor to learning important health data to exposing family secrets. You might have friends who have uncovered a different heritage than they knew to be true for their family or even long lost family members.

More: The Top Parenting Podcasts

Updated: February 12, 2020

How the MTHFR Gene Impacts Pregnancy

couple discussing the mthfr gene with doctor

With the advent of inexpensive and easily accessible DNA testing opportunities for the general public thanks to companies like 23 and Me and Ancestry DNA, questions about various genes and their mutations have become familiar and commonly used. One such gene is called MTHFR, and it is of particular interest to women who are trying to conceive and women who are pregnant. This is what you need to know about the MTHFR gene and how it can impact pregnancy.

In this article, you will find:

Your Dog's Health Screening Documentation

Inherited defects: hip dysplasia

Your Dog's Health Screening Documentation

Not so long ago, the only way for a breeder to know what genes—good and bad—her dogs carried was to breed the dogs and watch the offspring. Now science has expanded the tools available to the responsible dog breeder. As more knowledge is gained, breeders will have better and better tools at their disposal to eliminate or control many serious inherited disorders from their dogs.

Updated: February 12, 2020

Will My Pregnancy Be Like My Mom's?

pregnant woman with mother and grandmother

If there’s one thing we can all agree on, it’s that pregnancy is pretty unpredictable. However, it doesn’t have to be nine months filled with unanswered questions and wondering what fate has in store for you. It can feel like grasping at straws when figuring out where to start when you first learn you are pregnant. 

Do High HCG Levels Mean Twins? ( + HCG Chart to Test for Multiple Pregnancies)

HCG Screening and Multiple Pregnancy

What is HCG?

One of the earliest ways to detect the possibility of multiples is by monitoring the level of human chorionic gonadotropin (or HCG) in the mother's body. HCG is a hormone secreted by the fertilized egg(s). It regulates the production of other hormones, such as progesterone and estrogen, until the placenta develops and assumes that role. Often called the "pregnancy hormone," HCG supports fetal growth and development.