In protein synthesis, there are specific codons of base triplets that initiate or terminate protein synthesis. Which of the following is the codon that signals RNA to begin protein synthesis? A. UAA
B. AUG
C. UGA
D. AGU

Which of the following is a main difference in cell structure between an onion cell and a human cheek cell? a. an onion cell contains one nucleus, whereas a human cheek cell contains two nuclei. b. an onion cell has a cell wall. c. a human cheek cell contains chloroplasts. d. there is no difference between an onion cell and a human cheek cell. you for your.

What does the positioning of transcription factors determine?

Which of the following happened during the precambrian era? the first prokaryotic cells the first eukaryotic cells development of photosynthesis all of the above