| pair bond | In animals, the social relationship established between a male and female for reproduction. It may include raising of young. (12 Dec 1998) |
|---|---|
| pair production | <physics> The simultaneous production of an electron and a positron by an interaction of a photon or a fast charged particle with the electronic field of a nucleus or other particle. (16 Dec 1997) |
| pair rule gene | <molecular biology> A segmentation gene, expressed sequentially between gap genes and segment polarity genes. In development of Drosophila, a set of about 8 genes that are expressed only in alternate segments (odd or even) of the developing embryo. Loss of function mutants thus lack alternate segments. Examples: even skipped (eve), fushi tarazu (ftz), hairy. (18 Nov 1997) |
| matched-pair analysis | A type of analysis in which subjects in a study group and a comparison group are made comparable with respect to extraneous factors by individually pairing study subjects with the comparison group subjects (e.g., age-matched controls). (12 Dec 1998) |
| chromosome pair | Two chromosomes of the full diploid karyotype that are similar in form and function but that usually differ in content, one normally being inherited from each parent and one being transmitted to each progeny; in the heteromorphic sex (in humans, the male), one pair, the sex chromosomes, differ markedly in appearance, content, and function. (05 Mar 2000) |
| chromosomes, human, pair 1 | One of the three pairs in the first group (or group a) of human chromosomes according to the current classification for humans. (12 Dec 1998) |
| chromosomes, human, pair 10 | One of the seven pairs in the third group (or group c) of human chromosomes according to the current classification for humans. (12 Dec 1998) |
| chromosomes, human, pair 11 | One of the seven pairs in the third group (or group c) of human chromosomes according to the current classification for humans. (12 Dec 1998) |
| chromosomes, human, pair 12 | One of the seven pairs in the third group (or group c) of human chromosomes according to the current classification for humans. (12 Dec 1998) |
| chromosomes, human, pair 13 | One of three pairs in the fourth group (or group d) of human chromosomes according to the current classification for humans. (12 Dec 1998) |
| chromosomes, human, pair 14 | One of three pairs in the fourth group (or group d) of human chromosomes according to the current classification for humans. (12 Dec 1998) |
| chromosomes, human, pair 15 | One of the three pairs in the fourth group (or group d) of human chromosomes according to the current classification for humans. (12 Dec 1998) |
| chromosomes, human, pair 16 | One of the three pairs in the fifth group (or group e) of human chromosomes according to the current classification for humans. (12 Dec 1998) |
| chromosomes, human, pair 17 | One of the three pairs in the fifth group (or group e) of human chromosomes according to the current classification for humans. (12 Dec 1998) |
| chromosomes, human, pair 18 | One of the three pairs in the fifth group (or group e) of human chromosomes according to the current classification for humans. (12 Dec 1998) |