中国大学MOOC: A rare situation where only one of the two copies of a particular tumor-suppressor gene needs to be inactivated before there is a progression toward cancer is called:
举一反三
- A rare situation where only one of the two copies of a particular tumor-suppressor gene needs to be inactivated before there is a progression toward cancer is called: A: haploinsufficiency. B: clonal evolution. C: loss of heterozygosity. D: signal transduction. E: aneuploidy.
- Which of the following statements is right? A: RB exerts anti-proliferative effects by controlling the G1-to-S transition of the cell cycle B: RB is a key positive regulator of the cell cycle C: The TP53 was the first tumor suppressor gene to be discovered by the study of retinoblastoma D: Malignant transformation is only derived from one of the normal RB alleles inactivated
- Tumor suppressor genes encode proteins that normally restrain cell division. Mutation in one or more of these genes can lead to tumor formation.
- In about 150 Ma before recent there was only one continent called Pangea,and one ocean called Panthalassa.
- 中国大学MOOC: To become a member of the two major parties in America, one needs to ______________.