The site on the ribosome that holds the tRNA with the next amino acid to be added to the polypeptide chain. The synthesis of a protein from a mRNA template. Failure of paired chromosomes or sister chromatids to correctly separate into different daughter cells. The removal of noncoding regions from a mRNA transcript. DNA replication model in which the parental double helix remains intact and a synthesized double helix is composed of newly synthesized DNA strands. The noncoding regions of a mRNA transcript. A specialized base triplet at one end of a tRNA molecule that recognizes a particular complementary codon on an mRNA molecule The direction of synthesis for DNA and RNA polymerases.
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mRNA is translated at the ribosome by reading its codons (groups of three bases). tRNA molecules carry amino acids to the ribosome so they can be strung together in the proper sequence. The tRNA molecules have an anticodon that will pair up with the codon on the mRNA strand at the ribosome and then drop off its amino acid. This is how the correct amino acids are assembled in their proper order to make each protein. Choose the correct sequence of tRNA bases that pair up with the bases in this mRNA strand: ACU-CCU-GAG-GAG-AAA UGA-GGA-CUU-UUU-AAA UGA-GGA-CUC-CUC-UUU TGA-GGA-CTC-CTC-TTT
Bryan V.
A ribosome has a tRNA in its P site that is attached to a polypeptide. The ribosome's A site is sitting over a stop codon. What will happen next? The stop amino acid will be added to the polypeptide chain, and the polypeptide will be released. A terminator tRNA will bind in the A site of the ribosome, and the polypeptide will be released. A protein called a release factor will bind to the A site and the bond between the tRNA in the P site and the polypeptide chain will be hydrolyzed. The ribosome will shift three nucleotides toward the 3' end of the mRNA to expose the next codon in the A site
John N.
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