Round 19: Tossup 2

A set of four pegRNAs are used to create these phenomena in the PIE method. One of these phenomena differentiates the annual and perennial ecotypes of the yellow monkeyflower, supporting the hypothesis that they drive local adaptation. One of these phenomena in D. melanogaster called 3RP shows a latitudinal cline. (10[1])In a model by Kirkpatrick and Barton, these phenomena spread by preventing the breakdown of linkage disequilibrium during migration. (-5[1])Along with a dominant marker, these phenomena are present extensively in balancers to prevent recombination (10[1])events. (10[1])In the presence (-5[1])of these phenomena, (-5[1])a loop forms during crossing over. These phenomena can be pericentric or paracentric (10[3]-5[2])depending on whether they include the centromere. (10[1])For 10 points, name these large-scale genomic rearrangements in which a piece of a chromosome (-5[1])is flipped around. (10[1])■END■ (10[9]0[11])

ANSWER: chromosomal inversions [prompt on mutations or polymorphisms or structural variations or chromosomal alterations or structural alterations or chromosomal abnormality or structural abnormality; prompt on chromosomal rearrangements until read]
<Editors, Biology> | S. Playoffs 10 (Editors 10)
= Average correct buzzpoint

Back to tossups