There Are More Distinct Proteins in Eukaryotic Cells Than There

Multiple Choice

There are more distinct proteins in eukaryotic cells than there are number of genes. Which statement best explains this?

A) Many genes can give rise to multiple RNAs through alternate splicing.
B) Pseudogene expression often undergo transcription of truncated mRNAs.
C) Many genes undergo amplification and produce higher levels of mRNA.
D) Some mRNAs cross-hybridize and get translated into fusion proteins.