| chromosomes, human, pair 19 | One of the two pairs in the sixth group (or group f) of human chromosomes according to the current classification for humans. (12 Dec 1998) |
|---|---|
| chromosomes, human, pair 2 | 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 20 | One of the two pairs in the sixth group (or group f) of human chromosomes according to the current classification for humans. (12 Dec 1998) |
| chromosomes, human, pair 21 | One of the two pairs in the seventh group (or group g) of human chromosomes according to the current classification for humans. (12 Dec 1998) |
| chromosomes, human, pair 22 | One of the two pairs in the seventh group (or group g) of human chromosomes according to the current classification for humans. (12 Dec 1998) |
| chromosomes, human, pair 3 | 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 4 | One of the two pairs in the second group (or group b) of human chromosomes according to the current classification for humans. (12 Dec 1998) |
| chromosomes, human, pair 5 | One of the two pairs in the second group (or group b) of human chromosomes according to the current classification for humans. (12 Dec 1998) |
| chromosomes, human, pair 6 | 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 7 | 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 8 | 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 9 | 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) |
| nucleotide pair | <molecular biology> Two nitrogenous bases (adenine and thymine or guanine and cytosine) held together by weak bonds. Two strands of DNA are held together in the shape of a double helix by the bonds between base pairs. (09 Oct 1997) |
| acid-base balance | The normal balance between acid and base in the blood plasma, expressed in the hydrogen ion concentration or pH, resulting from the relative amounts of acidic and basic materials ingested and produced by body metabolism, compared to the relative amounts of acidic and basic materials excreted from the body and consumed by body metabolism; the normal state of acid-base balance is not one of neutrality, with equal concentrations of hydrogen and hydroxyl ions, but a more alkaline state with a certain excess of hydroxyl ions. Synonym: acid-base equilibrium. (05 Mar 2000) |
| acid-base equilibrium | A condition in which the net rate of acid or alkali production by the body is balanced by the net rate of acid or alkali excretion from the body, resulting in a stable concentration of hydrogen ions in the body fluids. (12 Dec 1998) |