We are independent & ad-supported. We may earn a commission for purchases made through our links.

Advertiser Disclosure

Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.

How We Make Money

We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently from our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What is Consanguinity?

Niki Acker
Updated May 21, 2024
Our promise to you
All The Science is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At All The Science, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

Consanguinity is the property of having the same kinship as another, or, in other words, having an ancestor in common. There are degrees of consanguinity; for example, sisters are more closely related than cousins, as the former have a common ancestor only one generation away. There may also be different definitions of consanguinity, as is often the case for legal purposes. For example, if a law stipulates that relatives may not marry each other, the definition of relative may be limited to those sharing a parent or grandparent, but not to those with only a great-grandparent in common.

The kinship relations of a group of individuals may be depicted in a consanguinity tree, commonly called a family tree. In a family tree, each generation is usually shown on a separate line or column, with solid lines indicating descent and dashed lines indication marriage. Consanguinity is sometimes taken to include adoptive relationships in addition to genetic ones. Some cultures consider two people to have the same kinship if they share a male ancestor, but not a female ancestor, or vice versa. Kinship relations are sometimes distinguished between consanguinity, or genetic decsent, and affinity, or marriage-based relationships.

In addition to anti-incest marriage laws, consanguinity may be used to determine who inherits the estate of a person who dies without leaving a will. For example, the person with the least generations of ancestral separation from the deceased may be the default inheritor. In the United States, if the deceased has a living spouse, he or she inherits the estate, while any children are next in line. If the deceased has no descendants, the parents of the deceased stand to inherit. If there are no living children or parents, the descendants of the deceased's parents -- i.e. the siblings of the deceased -- inherit the estate, followed by the descendants of the deceased's grandparents.

Genetic consanguinity can also be used to determine a person's risk of inheriting certain genetic disorders. If one's parents both had a genetic condition, or if two or more grandparents had it, there is often a greater risk that person will develop the disorder. Married couples are often tested for the presence of genes responsible for certain disorders to consider the risk that their children will have it.

All The Science is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Niki Acker
By Niki Acker , Writer
"In addition to her role as a All The Science editor, Niki Foster is passionate about educating herself on a wide range of interesting and unusual topics to gather ideas for her own articles. A graduate of UCLA with a double major in Linguistics and Anthropology, Niki's diverse academic background and curiosity make her well-suited to create engaging content for WiseGeekreaders. "

Discussion Comments

Niki Acker

Niki Acker


"In addition to her role as a All The Science editor, Niki Foster is passionate about educating herself on a wide range...
Learn more
All The Science, in your inbox

Our latest articles, guides, and more, delivered daily.

All The Science, in your inbox

Our latest articles, guides, and more, delivered daily.