2nd Edition

ISBN: 9781506699851

Author: OpenStax

Publisher: XANEDU PUBLISHING

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A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.

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Textbook Question

Chapter 16, Problem 35CTQ

Protein modification can alter gene expression in many ways. Describe how phosphorylation of proteins can alter gene expression.

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Chapter 16, Problem 34CTQ

Chapter 16, Problem 36CTQ

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Mutations/deficiencies in protein components of the ECM, CAMS, and cell junctions are involved in the expression of some human diseases. List and describe these pathologies in the table below. An example is given in the fırst row. Name of disease Symptoms Molecular Basis of Disease Severe vitamin C deficiency is caused by ascorbic acids' role in collagen synthesis. Vitamin C allows Anemia, debility, exhaustion, spontaneous hydroxylation and crosslinking of pro-collagen bleeding, pain in the limbs, and especially catalyzed by lysyl hydroxylase. Lack of vitamin C decreases transcription of pro-collagen. Additionally, a lack of ascorbic acid leads to epigenetic DNA hypermethylation and inhibits the transcription of various types of collagen found in skin, blood vessels, the legs, swelling in some parts of the body, and sometimes ulceration of the gums and loss of teeth Scurvy and tissue. 1 2 3 5 4.

Genetic expression involves transcription and translation. Match the structure or molecule to the step site where amino acid combines with tRNA intron sequences are removed and exons are combined together makes RNA more stable in the cytoplasm region of DNA with sequences that combine with RNA polymerase transcribed strand that will go on to translation connects amino acid to polypeptide chain and leaves tRNA site where tRNA with amino acid enters the ribosome recognized by the protein synthesis machinery enzyme that connects RNA nucleotides to DNA template part of tRNA with nucleotides complementary to mRNA 1. peptide bond 2. 3. antisense strand 4. anticodon loop 5. RNA polymerase 5' cap 6. A site 8. 7. splicing 9. promoter region acceptor stem 10. poly-A tail

Which of the following are examples of post- translational modification (PTM)? (select two answers) Genomic DNA is methylated by a DNA methyltransferase, altering the binding of transcription factors. Glycogen phosphorylase becomes active when phosphorylated by glycogen phosphorylase kinase. Glucose is phosphorylated by hexokinase as the first step in glycolysis. Ras is active when bound to GTP, and inactive when bound to GDP. Caspase 3 is activated when cleaved by capsase 9.

Chapter 16 Solutions

BIOLOGY 2E

Ch. 16 - Figure 16.5 In E. coli, the tip operon is on by...Ch. 16 - Figure 16.7 In females, one of the two X...Ch. 16 - Figure 16.13 An increase in phosphorylation levels...Ch. 16 - Control of gene expression in eukaryotic cells...Ch. 16 - Post-translational control refers to: regulation...Ch. 16 - How does the regulation of gene expression support...Ch. 16 - If glucose is absent, but so is lactose, the lac...Ch. 16 - Prokaryotic cells lack a nucleus. Therefore, the...Ch. 16 - The a/a operon is an inducible operon that...Ch. 16 - What are epigenetic modifications? the addition of...

Ch. 16 - Which of the following are true of epigenetic...Ch. 16 - The binding of _____ is required for transcription...Ch. 16 - What will result from the binding of a...Ch. 16 - A scientist compares the promoter regions of two...Ch. 16 - Which of the following are involved in post...Ch. 16 - Binding of an RNA binding protein will the...Ch. 16 - An unprocessed pre-mRNA has the following...Ch. 16 - IS. Alternative splicing has been estimated to...Ch. 16 - Post-translational modifications of proteins can...Ch. 16 - A scientist mutates elF-2 to eliminate its GTP...Ch. 16 - Cancer causing genes are called transformation...Ch. 16 - Targeted therapies are used in patients with a set...Ch. 16 - Name two differences between prokaryotic and...Ch. 16 - Describe how controlling gene expression will...Ch. 16 - Describe how transcription in prokaryotic cells...Ch. 16 - What is the difference between a repressible and...Ch. 16 - In cancer cells, alteration to epigenetic...Ch. 16 - A scientific study demonstrated that rat mothering...Ch. 16 - Some autoimmune diseases show a positive...Ch. 16 - A mutation within the promoter region can alter...Ch. 16 - What could happen if a cell had too much of an...Ch. 16 - A scientist identifies a potential transcription...Ch. 16 - Describe how RBPs can prevent miRNAs from...Ch. 16 - How can external stimuli alter...Ch. 16 - Protein modification can alter gene expression in...Ch. 16 - Alternative forms of a protein can be beneficial...Ch. 16 - Changes in epigenetic modifications alter the...Ch. 16 - A scientist discovers a virus encoding a Protein X...Ch. 16 - New drugs are being developed that decrease DNA...Ch. 16 - How can understanding the gene expression pattern...

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