Question 22Which is not a structural motif for DNA binding?Ο αβα motifZn Fingerleucine zipperHelix-turn-helixQuestion 23Amyloidoses are a set of relatively rare inherited diseases in which mutant forms of normally occurring proteins accumulate in a variety of tissues as amyloidsO TrueO False

Proteins are true polymers, which are composed of amino acid units. Proteins have four levels of…

Answered: Question 22 Which is not a structural…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Question 29 PCR is a technique that: produces information regarding the sequence of nitrogenous bases virtually eliminates operator error from DNA analysis All of these can produce many exact copies of segments of DNA provides a statistical analysis of the nitrogenous-base pairings
QUESTION NO. 1 A transition mutation A. occurs when a purine is substituted for a pyrimidine or vice versa. B. results from the insertion of one or two bases into the DNA chain. C. is most frequently caused by chemicals (like acridine) that intercalate into DNA. D. results from substitution of one purine for another or of one pyrimidine for another. E. always is a missense mutation QUESTION NO. 2 Degeneracy of the generic code denotes the existence of A. multiple codons for a single amino acid. B. codons consisting of only two bases. C. base triplets that do not code for any amino acid. D. different systems in which a given trip let codes for different amino acids. E. codons that include one or more of the unusual bases. QUESTION NO. 3 Replication A. requires that a phosphodiester bond of the incoming dNTP be hydrolyzed in order to be added to the growing chain. B. uses 5' to 3' polymerase activity to synthesize one…
Question 15 Activities found in the rough ER and its functions include the folllowing EXCEPT provides a membrane binding site for the RNA with signal a signal sequence facilitates post-translational modifications allows the entry of polypeptides that will undergo glycosylation provides a membrane scaffold for binding of ribosomes for protein synthesis
QUESTION NO. 1 Fragile X syndrome is a common form of inherited mental retardation. The mutation in the disease allows the increase of a CGG repeat in a particular gene from a normal of about 30 repeats to 200-1000 repeats. This repeat is normally found in the 5' untranslated region of a gene for the protein FMR1. FMR1 might be involved in the translation of brain-specific mRNAs during brain development. The consequence of the very large number of CGG repeats in the DNA is extensive methylation of the entire promoter region of the FMR1 gene. Methylation of bases in DNA usually A. facilitates the binding of transcription factors to the DNA. B. makes a difference in activity only if it occurs in an enhancer region. C. prevents chromatin from unwinding. D. inactivates DNA for transcription. E. results in increased production of the produce of whatever gene is methylated.QUESTION NO. 2 The best definition of an endonuclease is that it hydrolyzes A. nucleotide from…
QUESTION 12 The leucine zipper domain of transcription factors is not involved in DNA recognition but rather in facilitating dimerization. Given the chemical properties of the amino acid leucine, dimerization of transcription factors via this domain by (select the correct option). Facilitating hydrogen bonding with the aqueous environment. Chelation of bivalent ions such as Zn2+. Formation of coiled-coils through hydrophobic non-covalent interactions between evenly spaced Leu residues in alpha-helical domains. Physically connecting the two transcription factor subunits through unstructured loops.
QUESTION 26 In a double-stranded DNA molecule, how are the sequences of each strand related to each other? A The sequences are identical. B The sequences are identical except that one strand has a U where the other strand has a T. C The sequences are the reverse compliment of each other and use the nucleotides, A, G, U, and C only. D The sequences are the reverse complement of each other.
QUESTION 10 Remdesivir is converted in vivo to CMP analog and then phosphorylated to CTP analog. a successful treatment for Ebola. There are more than 1 correct answers in the other choices. a potential chain terminator for the replication of RNA viral genome
Question: Some states are setting up archives of DNA profiles for all convicted criminals. Should this be extended to all citizens and become part of their basic medical records? Why or why not?
QUESTION NO. 1 Patients with the rare genetic disease xeroderma pigmentosum (XP) are very sensitive to light and are highly susceptible to skin cancers. The study of such patients has enhanced our knowledge of DNA repair because XP is caused by defective DNA repair nucleotide excision repair. (A variant, XP-V, is deficient in postreplication repair.) In nucleotide excision repair A. removal of the damaged bases occurs on only one strand of the DNA. B. only thymine dimers generated by UV light can be removed . C. the excision nuclease is an exonuclease. D. a single multifunctional enzyme carries out the repair process. E. only the damaged nucleotides are removed. QUESTION NO.2 Homologous recombination: A. occurs only between two segments from the same DNA molecule. B. requires that a specific DNA sequence be present. C. requires one of the duplexes undergoing recombination be nicked in both strands. D. involves a…
QUESTION 24 During lagging strand synthesis of DNA, Okazaki fragments are linked together by ___________. DNA polymerase I Primase Beta clamps DNA Ligase
Question 24 pts When we are vaccinated against SARS-CoV-2, what happens? (select all correct answers) Group of answer choices a) Our adaptive immune system becomes primed to recognize the SARS-CoV-2 virus. b) Our DNA becomes modified. c) We will permanently have viral proteins in our cells d) Our cells will make a partial or complete viral protein, which our immune system will recognize as foreign. e) Memory cells will be ready for a new infection.
QUESTION 22 The DNA sequences that are most conserved between human and mouse would most likely be located in: A Highly-repeated sequences, such as microsatellite regions B Highly repeated sequences, such as Alu sequences C Moderately-repeated non-coding sequences D Coding regions of single-copy genes

SEE MORE QUESTIONS

Recommended textbooks for you

Biochemistry

ISBN:

9781319114671

Author:

Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:

W. H. Freeman

Lehninger Principles of Biochemistry

Biochemistry

ISBN:

9781464126116

Author:

David L. Nelson, Michael M. Cox

Publisher:

W. H. Freeman

Fundamentals of Biochemistry: Life at the Molecul…

Biochemistry

ISBN:

9781118918401

Author:

Donald Voet, Judith G. Voet, Charlotte W. Pratt

Publisher:

WILEY

Biochemistry

ISBN:

9781319114671

Author:

Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:

W. H. Freeman

Lehninger Principles of Biochemistry

Biochemistry

ISBN:

9781464126116

Author:

David L. Nelson, Michael M. Cox

Publisher:

W. H. Freeman

Fundamentals of Biochemistry: Life at the Molecul…

Biochemistry

ISBN:

9781118918401

Author:

Donald Voet, Judith G. Voet, Charlotte W. Pratt

Publisher:

WILEY

Biochemistry

ISBN:

9781305961135

Author:

Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal

Publisher:

Cengage Learning

Biochemistry

ISBN:

9781305577206

Author:

Reginald H. Garrett, Charles M. Grisham

Publisher:

Cengage Learning

Fundamentals of General, Organic, and Biological …

Biochemistry

ISBN:

9780134015187

Author:

John E. McMurry, David S. Ballantine, Carl A. Hoeger, Virginia E. Peterson

Publisher:

PEARSON

SEE MORE TEXTBOOKS