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.

hairpin

a secondary structure that occurs in single-strand RNA during protein synthesis in which the strand turns back on itself. The structure is the result of base pairing and hydrogen bond formation.
References in periodicals archive ?
The pictures show blanket stitch, my favourite for 'flat' 2D felties such as these hair clips.
Thread the wire through the hole in the closed end of the hair clip to the halfway point.
Thread the wire end of each pair through the hole in the hair clip.
The thing is, I've never used a hair clip before in my life.
The file also includes a police picture of the mystery hair clip.
Green dress, pounds 35 @BHS, Black shoes, pounds 30 @ Red Herring black clutch, pounds 50 @ Debenhams green flower hair clip, pounds 15@ BHS black stole, pounds 20 @ Debenhams
Polka dot hair clip, pounds 4, Marks & Spencer ' Check hair band, pounds 3, Accessorize ' Print scarf,pounds 8, Oasis' Black beads, pounds 15, French Connection ' Blouse,' pounds 28, Top Shop.
Super-sparkly and under a tenner, the almost-white frostiness of this hair clip makes it glitter especially well on dark brown and black hair.
A MENTALLY disabled woman was held down and screamed while wax was cleaned from her ears with a hair clip until they bled, a jury has been told.
White leather sandals, pounds 75, Dune Coloured beaded flower hair clip, pounds 6, Top Shop Purple/brown print dress, pounds 65, Oasis.
5 Purple print mini, pounds 25, black bikini top, pounds 8, purple print pumps, pounds 20, all Topshop; pink bow hair clip, pounds 4.