| rec A protein | <protein> A protein (40 kD) product of the rec (recombination) gene, that catalyses the pairing of a single stranded piece of DNA with its complementary sequence, displacing a loop of single stranded DNA (D loop). It catalyses the ATP-driven exchange of DNA strands in genetic recombination. The product of the reaction consists of a duplex and a displaced single-stranded loop which has the shape of the letter d and is therefore called a d-loop structure. ATP is hydrolyzed to ADP during the reaction; also has proteolytic activity. (22 Sep 2002) |
|---|---|
| rec B protein | <protein> Protein (140 kD), one subunit of nuclease that unwinds double stranded DNA and fragments the strands sequentially, the other subunit is recC (128 kD) (18 Nov 1997) |
| RecA | An Escherichia coli protein that specifically recognises single-stranded DNA and anneals it to a complementary sequence in a duplex which is homologous. This results in the displacement of the original complementary strand of the duplex. (05 Mar 2000) |
| recalcification | Restoration to the tissues of lost calcium salts. (05 Mar 2000) |
| recalcitrant | Resistant to microbial attack. (09 Oct 1997) |
| recalcitrate | To kick against; to show repugnance to; to rebuff. "The more heartily did one disdain his disdain, and recalcitrate his tricks." (De Quincey) Source: Websters Dictionary (01 Mar 1998) |
| recall | The process whereby a representation of past experience is elicited. (12 Dec 1998) |
| Recamier's operation | Curettage of the uterus. (05 Mar 2000) |
| Recamier, Joseph | <person> French gynecologist, 1774-1852. See: Recamier's operation. (05 Mar 2000) |
| recanalization | 1. Restoration of a lumen in a blood vessel following thrombotic occlusion, by organization of the thrombus with formation of new channels. 2. Spontaneous restoration of the continuity of the lumen of any occluded duct or tube, as with post-vasectomy recanalization. (05 Mar 2000) |
| recapitulation | See: recapitulation theory. (05 Mar 2000) |
| recapitulation theory | The theory formulated by E.H. Haeckel that individuals in their embryonic development pass through stages similar in general structural plan to the stages their species passed through in its evolution; more technically phrased, the theory that ontogeny is an abbreviated recapitulation of phylogeny. Synonym: biogenetic law, law of biogenesis, Haeckel's law, law of recapitulation. (05 Mar 2000) |
| recarbonise | <chemistry> To restore carbon to; as, to recarbonize iron in converting it into steel. Source: Websters Dictionary (01 Mar 1998) |
| recarbonize | <chemistry> To restore carbon to; as, to recarbonize iron in converting it into steel. Source: Websters Dictionary (01 Mar 1998) |
| receive | 1. To take, as something that is offered, given, committed, sent, paid, or the like; to accept; as, to receive money offered in payment of a debt; to receive a gift, a message, or a letter. "Receyven all in gree that God us sent." (Chaucer) 2. Hence: To gain the knowledge of; to take into the mind by assent to; to give admission to; to accept, as an opinion, notion, etc.; to embrace. "Our hearts receive your warnings." (Shak) "The idea of solidity we receives by our touch." (Locke) 3. To allow, as a custom, tradition, or the like; to give credence or acceptance to. "Many other things there be which they have received to hold, as the washing of cups, and pots." (Mark vii. 4) 4. To give admittance to; to permit to enter, as into one's house, presence, company, and the like; as, to receive a lodger, visitor, ambassador, messenger, etc. "They kindled a fire, and received us every one." (Acts xxviii. 2) 5. To admit; to take in; to hold; to contain; to have capacity fro; to be able to take in. "The brazen altar that was before the Lord was too little to receive the burnt offerings." (1 Kings viii. 64) 6. To be affected by something; to suffer; to be subjected to; as, to receive pleasure or pain; to receive a wound or a blow; to receive damage. "Against his will he can receive no harm." (Milton) 7. To take from a thief, as goods known to be stolen. 8. To bat back (the ball) when served. Receiving ship, one on board of which newly recruited sailors are received, and kept till drafted for service. Synonym: To accept, take, allow, hold, retain, admit. Receive, Accept. To receive describes simply the act of taking. To accept denotes the taking with approval, or for the purposes for which a thing is offered. Thus, we receive a letter when it comes to hand; we receive news when it reaches us; we accept a present when it is offered; we accept an invitation to dine with a friend. "Who, if we knew What we receive, would either not accept Life offered, or soon beg to lay it down." (Milton) Origin: OF. Receiver, recevoir, F. Recevoir, fr. L. Recipere; pref. Re- re- + capere to take, seize. See See Capable, Heave, and cf. Receipt, Reception, Recipe. Source: Websters Dictionary (01 Mar 1998) |