proteins are the final products of most genes
A: 正确
B: 错误
A: 正确
B: 错误
举一反三
- proteins are the final products of most genes
- Most yeast genes are between 5 and 100kb long, and most mammalian genes are less than 2kb long. A: 正确 B: 错误
- In positive regulation, most of the genes are usually inactive (that is, RNA polymerases do not bind to the promoters) and the cell synthesizes only the activator proteins needed to promote transcription of the subset of genes required in the cell at that time.
- The expression products of all genes are proteins.
- Tumor suppressor genes encode proteins that normally restrain cell division. Mutation in one or more of these genes can lead to tumor formation.