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Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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
Transcribed Image Text:The genetic instructions for the amino acid sequence of a polypeptide chain are written in DNA and
RNA as a series of three-base words called codons and then the RNA codons are translated into
amino acids that form a polypeptide.
Select one:
True
False
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- Place an asterisks (*) next to the 3' carbon atoms in the polynucleotide shown. -O CH₂ HOHDH Guanine -O-CH₂ H H H Thymine =P-O-CH₂ H OH Answer Bank H H Cytosinearrow_forwardA protein is 300 amino acids long. Which of the following could be the number of DNA base pairs in the section of DNA that codes for this protein? Group of answer choices 100 900 1200 None of these 300arrow_forwardThe E. coli DNA molecule contains 4.70 x 105 base pairs. Determine the number of codons that can be present in this DNA molecule. number of codons: 1.57 x106 codons Assuming that the average protein in E. coli consists of a chain of 420 amino acids, calculate the maximum number of proteins that can be coded by an E. coli DNA molecule. number of proteins: proteinsarrow_forward
- How many base-pairs would have to be deleted in a mutational event to eliminate a single amino acid from a protein and not change the rest of the protein? You must enter a whole number (no text)arrow_forwardWhat tetrapeptide is synthesized from the informational DNA sequence G-T-C-A-G-T-A-C-G-T-T-A?arrow_forwardPhosphorylation is a very common post-translational modication (PTM) to regulate protein function. Which amino acids are most commonly regulated by phosphorylation? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a Leucine, arginine, serine. b Tyrosine, arginine, glutamine. C Serine, threonine, tyrosine. d Glutamine, arginine, tyrosine. e Serine, tyrosine, glutamine.arrow_forward
- Given the messenger RNA sequence, determine the amino acid sequence of a peptide.arrow_forwardCodons are a three-letter genetic code that encode for specific amino acids. Which amino acid is at the beginning of every eukaryotic protein and why?arrow_forwardConsider Molecule X, which is found in all living cells. Each form of this molecule is keyed to the genetic code for a particular amino acid. When activated, the amino acid is covalently bonded to one end of this molecule, and it carries the amino acid to a ribosome to take part in protein assembly. What is the name of X? Your answer should be one word, or a short two- or three-word phrase. Spelling counts. Note: if there is more than one possible answer, separate each answer with a comma. 0arrow_forward
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