A mechanism for preventing sap loss entails closing sieve plate pores with callose, which is

TLS Online TPP Program

#Question id: 3859

#3. Fundamental Processes

Polyadenylation is:

TLS Online TPP Program

#Question id: 3860

#3. Fundamental Processes

Guide RNAs:

TLS Online TPP Program

#Question id: 3861

#3. Fundamental Processes

_ are sequences that are removed from primary transcripts, and _ are sequences that remain present in mature mRNA molecules.

TLS Online TPP Program

#Question id: 3863

#3. Fundamental Processes

Introns in nuclear pre-mRNAs are excised by:

TLS Online TPP Program

#Question id: 3864

#3. Fundamental Processes

RNA polymerase:

TLS Online TPP Program

#Question id: 3865

#3. Fundamental Processes

Which of the following statements about E. coli RNA polymerase is false?