During initiation of translation the initiator tRNA is placed in the P site leaving the A site open. Which of the following statements does not explain why it is important to leave site A available?a. It is necessary to leave room for the second amino-acyl tRNA to occupy site A. b. It is necessary for the proper assembly of the ribosome. c. It is necessary because new peptide bonds form between the amino adds of the tRNA in P and the incoming amino-acyl tRNA in site A. d. It is necessary because codons in the mRNA are read in the A site

cell division is not regulated in tumor cells.

the correct answer is: b. pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction.  

because involves two organisms (parents) whose genetic material combines, sexual reproduction leads to genetic variation in new generations of offspring. the offspring is an unique organism, with new genome, more protected with the higher ability to adapted. this process is fundamental to evolution.

there is not 1 highest source of protein, but there are many; meats, fish, poultry, seafood, cheese, eggs, yogurt and milk. the only non complete animal food that is beneficial is gelatin.

sorry if this did not , have a great day!