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 a bacterial protein is 3,300 amino acids long, how many nucleotidepairs long is the gene sequence that codes for it?
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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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- How many kilobases of the DNA strand below will code for the protein product?arrow_forwardIf the length of E.coli DNA is 1.36 mm, calculate the number of base pairs it containsarrow_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
- What is meant by the statement “The genetic code is universal”? What is the significance of this finding?arrow_forwardIf the anticodon of a molecule of tRNA has the sequence GAU, what was the original DNA sequence?arrow_forwardDNA mutations can affect the reading frame for the genetic code. What is a human condition caused by these mutations? Identify how the reading frame is affected.arrow_forward
- You have isolated a fragment of viral DNA that supposedly encodes for two proteins, 196 and 220 amino acids long respectively. The isolated DNA fragment is found to be 1100 base pairs in length. Argue why is the isolated DNA cannot code the two proteins identified earlier?arrow_forwardHow is the information in the DNA interpreted into a functional protein,such as an enzyme?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
- Why can the genetic code be qualified as a “degenerate code”?arrow_forwardGive the sequence of unpaired bases that would be sticky with the following sequences:(a) GGTAC (b) ACCCA (c) GTGTCarrow_forward, The E. coli genome is 4.6 Mbp (mega base-pairs). What is the physical length of the E. coli genome?arrow_forward
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