22) The DNA region where gene transcription starts (and RNA polymerase is recrui

Question

22) The DNA region where gene transcription starts (and RNA polymerase is recruited to) is called the . The DNA region where DNA replication starts is called the ____________ . The mRNA region where prokaryotic translation starts is determined by the _______ codon and an upstream RNA sequence called the ________________________ sequence. 23) What is the anticodon sequence of the methionine-carrying tRNA (make sure to express it from the 5? to 3? direction) ? 5?- -3? 24) Which of these statements is false. a) Chaperone proteins are required for the proper folding of some proteins b) Some chaperone proteins are induced by heat shock e) Chaperone proteins require ATP to function d) Once folded, cytoplasmic proteins cannot be transported across the cell membrane e) The signal sequence directs newly synthesized proteins to be transported into or across cell membranes f) The signal sequence is recognized by SRP

Explanation / Answer

The region where gene transcripon strarts is called the Promoter region.

The region where DNA replication starts is called the origin of replication site (OriC).

The mRNA region where prokaryotic replication starts is determined by initiator codons or start codons (Eg: AUG), and an upstream RNA sequence called the "Shine-Dalgarno" sequence.

23. Codon for methionine is 5-AUG-3. (anticodon is 3-UAC-5).

24. D (folded proteins can be transported across the cell membrane).

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