Crossing Over: The breaking during meiosis of one maternal and one paternal chromosome, the exchange of corresponding sections of dna, and the rejoining of the chromosomes. This process can result in an exchange of alleles between chromosomes.

 

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Crossing Over: The breaking during meiosis of one maternal and one paternal chromosome, the exchange of corresponding sections of dna, and the rejoining of the chromosomes. This process can result in an ex . . . View Full Definition

Oversampling: A technique where each sample from a data converter is sampled more than once, i.e., oversampled. This multiplication of samples permits digital filtering of the signal, thus reducing the ne . . . View Full Definition

Overrunning: This occurs when a relatively warm air mass is forced above a cooler air mass of greater density. Weather generally associated with this event includes cloudiness, cool temperatures, and ste . . . View Full Definition

Overrule: Reversing a call from the linesperson, done by the umpire

Overscan: The TV approach of bleeding the video signal off the edges of the picture display unit. When converting computer screen to overscan, graphics and text at the edges of the image may be lost. . . . View Full Definition

Overseed: To plant new grass seed directly into already existing turf

Overshooting: The tendency of a pool of MBS to reflect an especially high rate of prepayments the first time it crosses the threshold for refinancing, especially if two or more years have passed since the . . . View Full Definition

Overshoot: To land beyond a runwway or planned spot. Opposite of UNDERSHOOT.

Override Commission: Extra commission paid by suppliers for quantity or volume sales.

Override: Extra commission that travel agents sometimes get, usually for selling a certain amount of a supplier's product.