Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN: 9781305251052
Author: Michael Cummings
Publisher: Cengage Learning
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Textbook Question
Chapter 9, Problem 3QP
If the genetic code used 4 bases at a time, how many amino acids could be encoded?
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The genetic code uses three bases to encode one amino acid. Why can't the code use only two bases to encode each amino acid?
If the anticodon of a molecule of tRNA has the sequence GAU, what was the original DNA sequence?
If a bacterial protein is 3,300 amino acids long, how many nucleotidepairs long is the gene sequence that codes for it?
Chapter 9 Solutions
Human Heredity: Principles and Issues (MindTap Course List)
Ch. 9.6 - Antibiotics and Protein Synthesis Antibiotics are...Ch. 9.6 - Antibiotics and Protein Synthesis Antibiotics are...Ch. 9 - There have been recurring cases of mad-cow disease...Ch. 9 - There have been recurring cases of mad-cow disease...Ch. 9 - There have been recurring cases of mad-cow disease...Ch. 9 - The Link Between Genes and proteins The genetic...Ch. 9 - Define replication, transcription, and...Ch. 9 - If the genetic code used 4 bases at a time, how...Ch. 9 - If the genetic code uses triplets, how many...Ch. 9 - What is the start codon? What are the stop codons?...
Ch. 9 - Is an entire chromosome made into an mRNA during...Ch. 9 - The promoter and terminator regions of genes are...Ch. 9 - The following segment of DNA codes for a protein....Ch. 9 - What are the three modifications made to pre-mRNA...Ch. 9 - The pre-mRNA transcript and protein made by...Ch. 9 - Briefly describe the function of the following in...Ch. 9 - Prob. 12QPCh. 9 - Determine the percent of the following gene that...Ch. 9 - How many kilobases of the DNA strand below will...Ch. 9 - Prob. 15QPCh. 9 - Given the following tRNA anticodon sequence,...Ch. 9 - Given the following mRNA, write the...Ch. 9 - The following is a portion of a protein:...Ch. 9 - Below is the structure of glycine. Draw a...Ch. 9 - Indicate in which category, transcription or...Ch. 9 - Prob. 21QPCh. 9 - Polypeptide folding is often mediated by other...Ch. 9 - Do mutations in DNA alter proteins all the time?Ch. 9 - a. Can a mutation change a proteins tertiary...
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- If the genetic code uses triplets, how many different amino acids can be coded by a repeating RNA polymer composed of UA and UC (UAUCUAUCUAUC ...)? a. one b. two c. three d. four e. fivearrow_forwardHow many kilobases of the DNA strand below will code for the protein product?arrow_forwardIf you know the sequence of amino acids in a protein, what does the genetic code table allow you to infer about the sequence of base pairs in the gene that specifies that protein?arrow_forward
- Why can the genetic code be qualified as a “degenerate code”?arrow_forwardSuppose that codons consisted of 4 nucleotides instead of 3 and that there were only 2 different bases. How many amino acids could be encoded by this variant of the genetic code?arrow_forwardIf a 100 base-pair double-stranded DNA fragment has 40 cytosines, how many adenines does it contain?arrow_forward
- How many bases would a mRNA have? if it was coded for a protein of 250 amino acids long? explain your answerarrow_forwardHow would you choose where to begin your reading of a sequence in mRNA? Which rule governing the use of the genetic code did you use?arrow_forwardHow many codons would exist in a genetic code that had codons that were four bases long? Why? (show the equation for calculation)arrow_forward
- What is meant by the statement “The genetic code is universal”? What is the significance of this finding?arrow_forwardGive the sequence of unpaired bases that would be sticky with the following sequences:(a) GGTAC (b) ACCCA (c) GTGTCarrow_forwardIf the DNA strand has nitrogenous base sequence ATTGCC, the mRNA will have?arrow_forward
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