Question
Leaf senescence is delayed in ipt1 (“I-P-T-1”) Arabidopsis mutants incapable of synthesizing these compounds. For 10 points each:
[10m] Name these plant hormones also implicated in re-establishing chloroplasts in dark-grown seedlings. Increasing the ratio of these hormones to auxin induces shoot formation in calluses.
ANSWER: cytokinins [accept zeatin; accept kinetin]
[10e] cre1 (“cree-1”) mutants unable to sense cytokinins cannot produce this tissue partly composed of sieve elements. This tissue, which facilitates sugar transport throughout a plant, is contrasted with the xylem.
ANSWER: phloem
[10h] Research on cytokinins was trailblazed by this biologist, who worked with C. O. Miller to create shoot-inducing media. Along with Toshio Murashige, this man co-names a popular medium used to grow plant tissue cultures.
ANSWER: Folke Skoog [or Folke Karl Skoog; accept Murashige and Skoog medium]
<Kane Nguyen, Biology>
Summary
| 2024 Penn Bowl Florida | 10/26/2024 | Y | 2 | 15.00 | 100% | 50% | 0% |
| 2024 Penn Bowl Harvard | 10/26/2024 | Y | 3 | 13.33 | 100% | 33% | 0% |
| 2024 Penn Bowl UK | 10/26/2024 | Y | 5 | 12.00 | 100% | 0% | 20% |
| 2024 Penn Bowl UNC | 10/26/2024 | Y | 3 | 13.33 | 100% | 33% | 0% |
Data
| UNC C | Duke A | 0 | 10 | 0 | 10 |
| Virginia Tech A | UNC A | 0 | 10 | 0 | 10 |
| UNC B | RIT A | 10 | 10 | 0 | 20 |