Question
Johnson and Rao induced this process in He·La cells with UV-inactivated Murine respiro·virus. For 10 points each:
[10h] Name this process that yields syncytia like animal skeletal muscle cells.
ANSWER: cell fusion [or cell–cell fusion]
[10e] Johnson and Rao observed that fusing a cell in this stage with another cell causes the second cell's chromatin to condense, leading them to hypothesize a "maturation-promoting factor," or MPF. Prophase is the first part of this stage that follows G1, S, and G2.
ANSWER: mitosis [or M phase or meiosis or M stage]
[10m] MPF is a dimer of the "B" type of these proteins and CDK1, which is a kinase "dependent" on these proteins. The "E" and "A" types of these proteins dimerize with CDK2 to facilitate the G2–S transition.
ANSWER: cyclins [or cyclin E or cyclin A or cyclin B; reject "cyclin-dependent kinases"]
<Science - Biology>
Data
Summary
| Tournament | Edition | Exact Match? | Heard | PPB | Easy % | Medium % | Hard % |
|---|---|---|---|---|---|---|---|
| 2025 PACE NSC | 06/07/2025 | Y | 37 | 12.70 | 84% | 43% | 0% |