Blog

Both at-home and legal DNA tests use the same science, but the way samples are collected makes all the difference. Here’s how to choose the right option for your situation - from personal peace of mind to court-admissible results.

In recent years, public concern around genetic privacy has grown, with stories of data misuse, major breaches, and even the bankruptcy of companies like 23andMe. At Identilab, we’re not in the business of data mining or selling your DNA; your sample is used only for the purpose you’ve engaged us for, and never added to a database or shared with third parties.

Ever wondered what makes twins truly identical - or not? In this blog, we explore zygosity testing, why it matters, and our collaboration with Twins Research Australia to make testing easy and accessible for families across the country.

Y-STR testing can be really helpful when you’re trying to figure out male-line relationships - especially if the direct father can’t be tested. In this post, we break down how it works, what it can (and can’t) tell you.

Most paternity tests are straightforward, but rare biological situations can complicate the picture. Learn how chimerism and bone marrow transplants can lead to multiple DNA profiles in one person, and how careful scientific interpretation ensures the correct result.

Direct-to-Consumer (DTC) DNA ancestry tests have surged in popularity, promising fascinating glimpses into our heritage and the chance to connect with distant relatives. But for some, these tests do more than satisfy curiosity - they uncover unexpected truths.

DNA testing is widely regarded as the gold standard for determining biological relationships. However, there are two critical concepts often misunderstood when discussing DNA testing for parentage: accuracy of the test and probability of paternity. While both are essential, they serve different purposes and are calculated in entirely different ways.

Twins are often categorised as either identical or fraternal, based on their genetic makeup. However, there's a rare phenomenon known as heteropaternal superfecundation that adds an unexpected twist to the concept of fraternal twin - they can actually have different fathers. Yes, you read that right. Have we seen this at Identilab? Yes, not once, but twice!

The words “sex” and “gender” are often used interchangeably, including on medical forms and identity documents. The difference between sex and gender has particular implications for DNA testing, especially for individuals who are intersex, transgender, non-binary or gender non-conforming.