hairpin

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hair·pin

( hār'pin),
1. The structure formed by a polynucleic acid by base-pairing between neighboring complementary sequences of a single strand of either DNA or RNA.
2. The structure seen in a prostaglandin where two segments of the molecule fold back on one another.
Hairpinclick for a larger image
Fig. 187 Hairpin . (a) Hairpin. (b) Hairpin loop.

hairpin

a double-stranded structure found in single-stranded NUCLEIC ACID molecules, due to BASE PAIRING between adjacent complementary sequences. The two sequences are inversely arranged and may be directly adjacent, as in a PALINDROME, or interrupted by a non-complementary sequence. In the former case a double-stranded segment (hairpin) is generated; in the latter a hairpin-loop structure forms.
References in periodicals archive ?
* Thread the wire through the hole in the closed end of the hair clip to the halfway point.
The beauty product, which has been developed by entrepreneurial couple Rachel Emanuele and her husband Arthur, doubles as a hair clip with sensors that can detect an attack and record evidence, while contacting the emergency services, the Mirror reported.
This week's craft is about making cute hair clips for the little girls in your life.
Thread the wire end of each pair through the hole in the hair clip. Twist it around into a large loop and wind it around the eye pin as shown in Photo D.
The thing is, I've never used a hair clip before in my life.
Start with your dog in a sitting position and place the plaster or hair clip on its eyebrow, which should spark a response from the dog to remove the cause of the tickle by using its paw to wipe it away.
GREAT STYLES: Laura Connaughton, of the Contemporary salon GETTING AHEAD: Fran Lee's pink shade BIG IT UP: Sophie Caygill looks great with lots of volume You'll have New Year all tied up with this purple oversized bow hair clip, pounds 8, at Debenhams.
Red daisy heart hair clip, pounds 5.50 www.ebuni.com 01623 858999 6.
This stunning hair clip features Austrian crystals and is perfect for creating a romantic and timeless look.
A COP told a murder trial he is certain he informed a colleague a woman's hair clip was in a tank where the victim's body was found.
1 Crystal Hair Spinners, [euro]9, Claire's (as seen on model) 2 Mini crystal butterfly bulldog clips, [euro]9 for two, Accessorize 3 Love Rocks Articulated Butterfly Hair Clip, [euro]48, ASOS
FLY into River Island for this chain hair clip, pounds 3.99.