Bonus
One type of these sequences called P elements causes hybrid dysgenesis, which results in a sterile phenotype. For 10 points each:
[10h] Name these sequences whose Class I (“one”) type is exemplified by Alu elements. These sequences are “autonomous” if they can move independently.
ANSWER: transposons [or transposable elements or TEs or jumping genes; accept retrotransposons or Class I transposons; accept autonomous transposons]
[10m] Margaret Kidwell described P elements while studying this model insect. Red-eyed wild types and white-eyed mutants of this insect were bred by Thomas Hunt Morgan.
ANSWER: Drosophila [or fruit fly or fruit flies; accept Drosophila melanogaster; prompt on melanogaster; prompt on fly or flies; prompt on Diptera or dipterans]
[10e] Fruit flies are a popular model organism due to their small genome, which consists of four pairs of these structures. Humans typically have 23 pairs of these structures, whose X and Y variants determine sex.
ANSWER: chromosomes [accept sex chromosomes or X chromosomes or Y chromosomes]
<Chicago B, Biology>
| Editions | Heard | PPB | Easy % | Medium % | Hard % |
|---|---|---|---|---|---|
| 2 | 103 | 21.46 | 100% | 90% | 24% |
Conversion
Summary
| Tournament | Edition | Exact Match? | Heard | PPB | Easy % | Medium % | Hard % |
|---|---|---|---|---|---|---|---|
| UK (North) | UK | Y | 5 | 14.00 | 100% | 40% | 0% |
| UK (South) | UK | Y | 8 | 17.50 | 100% | 75% | 0% |
| Northern California | US | Y | 4 | 25.00 | 100% | 100% | 50% |
| Southern California | US | Y | 7 | 22.86 | 100% | 100% | 29% |
| Eastern Canada (1) | US | Y | 4 | 25.00 | 100% | 100% | 50% |
| Florida | US | Y | 4 | 20.00 | 100% | 100% | 0% |
| Great Lakes | US | Y | 10 | 25.00 | 100% | 100% | 50% |
| Lower Mid-Atlantic | US | Y | 9 | 24.44 | 100% | 100% | 44% |
| Upper Mid-Atlantic | US | Y | 11 | 23.64 | 100% | 91% | 46% |
| Upper Mid-Atlantic | US | Y | 1 | 20.00 | 100% | 100% | 0% |
| Midwest | US | Y | 9 | 21.11 | 100% | 100% | 11% |
| North | US | Y | 4 | 20.00 | 100% | 100% | 0% |
| Northeast | US | Y | 2 | 20.00 | 100% | 50% | 50% |
| Pacific | US | Y | 8 | 20.00 | 100% | 88% | 13% |
| Southeast | US | Y | 12 | 20.00 | 100% | 83% | 17% |
| Upstate NY | US | Y | 5 | 20.00 | 100% | 100% | 0% |