Concept explainers
Interpretation:
Describe the effect on the protein produced if the DNA coding sequence “-CAA-CCG-GAT-“were miscopied as “-CGA-CCG-GAT-�.
Concept introduction:
A mutation is a shift in a brief area of a genome's
Mutations are caused either by
All cells have DNA-repair enzymes, which try to minimize the amount of mutations occurring. There are two ways these enzymes work, some are pre-replicative, searching for DNA for nucleotides with uncommon structures, replacing them before replication happens; others are post-replicative, checking for mistakes for freshly synthesized DNA, correcting any mistakes, they discover. Therefore, a possible mutation definition is a deficiency in DNA repair.
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Chapter 28 Solutions
ORGANIC CHEMISTRY-EBOOK>I<
- Suppose that 28% of the nucleotides in a DNA molecule are deoxythymidine 5'-monophosphate, and that during DNA replication the percentage amounts of available nucleotide bases art 22% A, 22% C, 28% G. and 28% T. Which base would be depleted first in the replication process?arrow_forwardDraw the complete structure of the ribonucleotide codon UAC. For what amino acid does this sequence code?arrow_forwardThe DNA template strand segment 3TTCAAACCGTAC5 upon transcription and translation produces the amino acid sequence Lys-Phe-Gly-Met. What is the amino acid sequence produced if a frameshift mutation occurs in which the third A base in the original DNA sequence is removed?arrow_forward
- -114 How could life have evolved if DNA leads to RNA which leads to protein, but it takes many proteins to replicate DNA and to transcribe DNA into RNA?arrow_forwardConsider the following DNA base sequence 3TTAATA5 a. What dipeptide is formed from the transcription and translation of this DNA segment? b. What dipeptide is formed if a DNA point mutation converts ATA to ATG? c. What dipeptide is formed if a DNA point mutation converts ATA to AGA? d. What dipeptide is formed if a DNA point mutation converts TTA to TTT?arrow_forwardThe -chain of hemoglobin is a protein that contains 146 amino acids residues. What minimum number of nucleotides must be present in a strand of mRNA that is coded for this protein?arrow_forward
- 25-8 Draw the structures of ADP and GDP. Are these structures parts of nucleic acids?arrow_forwardThe DNA template strand segment 3TTCAAACCGTAC5 upon transcription and translation produces the amino acid sequence LysPheGlyMet. What is the amino acid sequence produced if a frameshift mutation occurs in which a G base is inserted after the first C in the original DNA sequence?arrow_forwardGive an mRNA sequence that will code for the synthesis of metenkephalin. Tyr-Gly-Gly-Phe-Metarrow_forward
- Organic And Biological ChemistryChemistryISBN:9781305081079Author:STOKER, H. Stephen (howard Stephen)Publisher:Cengage Learning,General, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage Learning
- Chemistry for Today: General, Organic, and Bioche...ChemistryISBN:9781305960060Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. HansenPublisher:Cengage LearningChemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub CoIntroduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning
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