How to give the gift of life's building blocks for the holidays

Yes, we're talking saliva for the holidays. Oprah Winfrey was taken by one kit in particular, the Ancestry kit from a company called 23andMe. She put the kit on her 2017 list of her favorite things. According to some reviews, the kit has a good number of features, as does one from Ancestry.com, which boasts the world's largest DNA network to reveal ancestors and where they came from.

The 23andMe company, named for the 23 chromosomes in human DNA, also has a health kit to identify genetic risks and whether a person is a carrier of certain inherited conditions.

The process of saliva collection is painless and straightforward at 23andMe, starting at buying the kit for $99. A gift recipient would then register at the company's website, spit into a tube provided and return the sample with a prepaid label and box.

Because who doesn't want to know the genetic makeup of man's best friend.

For $199, a company called Embark makes a dog DNA test that generates a report it says will identify everything from geographic origin to personality traits through the tracking of more than 200,000 genetic markers.

Another company, Orivet Genetic Pet Care, will do the same, including disease screening, breed identification and purebred profiles, including parentage confirmation, for $85.

The company DNA11 has been around since 2005. It produces via a mouth swab method of DNA collection colorful framed canvas art for hanging and smaller versions for desk display based on the samples. Several size options are available, as are a range of color schemes. Prices range from $199 to $649.

The DNA of several people can be combined into one canvas or split into two screens for couples. The company delivers to 29 countries.

Who doesn't need a scarf crafted around one's genetic code? A London company, Dotone.io, will help a gifter out, partnering with another company, Helix, to provide a testing kit and instructions on how a gift recipient can get it done in colorful yarns.

Everything is on Helix.com. The DNA kit is $80 and the one-of-a-kind knitted scarf is $149.99.

Colors can be selected to represent each of four DNA bases: adenine, thymine, cytosine and guanine. The machine washable scarves are a mix of Italian wool and acrylics.

Each scarf comes with a card detailing 33 genetic traits based on the saliva sample submitted for analysis. It also comes with a booklet that explains the basics of DNA and how the subject's DNA was translated to create the pattern on the scarf.

Key chains, double helix lamps, jewelry and wall prints — the DNA gift options are endless. One black coffee mug with a green, blue and red double helix design says it all: "Stop Copying Me!" Available on Amazon for $17.95.