Homework Answers
Answer is option 1 : The cell is missing HAT ( histone acetyl transferase).
HAT enzyme acetylates lysine residues present in different histones H2A,H2B, H3 and H4 ( mostly the N terminal lysines). Acetylation of lysine side chain shields the positive charge and thus the DNA-histone interaction weakens and Histones are removed from the DNA generating naked DNA. This DNA is now accessible for transcriptional machionary and thus transcription occurs easily. A cell missing HAT couldn't generate naked DNA at transcription start site, thus even all of the transcription machionary are present, no transcription occurs.
Question 7:
Phosphates; deoxyribose sugar; nitrogenous bases
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You are growing cells in the lab and want them to express Protein X. You have...
DNA is formed by building blocks called __________. nucleotides nitrogenous bases polypeptides deoxyribose 0.5 points ...
DNA is formed by building blocks called __________. nucleotides nitrogenous bases polypeptides deoxyribose 0.5 points QUESTION 2 What does DNA stand for? Double-stranded Nucleic Acid Ribonucleic acid Deoxyribonucleic Acid Double-helix Nucleic Acid 0.5 points QUESTION 3 The nucleotides of DNA are held together by ___________. ionic bond hydrogen bond phosphodiester bond sugar-phosphate backbone 0.5 points QUESTION 4 DNA nucleotides with one-carbon nitrogen ring bases are called ________. adenines purines pyrimidines guanines 0.5 points QUESTION 5 Basic...
The nonprotein portion required by complex enzymes for proper functioning called a(en) _________. zymogen substrate inhibitor...
The nonprotein portion required by complex enzymes for proper functioning called a(en) _________. zymogen substrate inhibitor cofactor activator Which of the following are required to form a DNA nucleotide? ribose and phosphate deoxyribose and phosphate ribose, phosphate, and a base deoxyribose and a base deoxyribose phosphate, and a base How many hydrogen bonds link the following two strands of DNA 2 3 8 14 16 Which of the following enzymes is NOT involved in replication? DNA polymerase DNA ligase peptidyl...
What are the three functional groups that comprise a nucleotide? What do nucleotides have in common...
What are the three functional groups that comprise a nucleotide? What do nucleotides have in common with amino acids or simple sugars? When the structure of DNA was first elucidated, many biologists quickly saw how this structure explained the passage of information from one generation to another. How does the structure of DNA explain generation-to-generation flow of information? In other words, give a brief description of the structure of DNA and tell how this structure allows for replication. Which of...
please help with these. if you answer all of them I'll be sure to give a...
please help with these. if you answer all of them I'll
be sure to give a thumbs up.
please explain them so I can understand them, especially 28 and 26.
thanks!
13. What would be the MOST likely effect of mutating the consensus sequence found at the 5' splice site of an intron? 1. A longer than normal mRNA would be produced. 2. A shorter than normal protein would be produced. 3. A longer than normal DNA would be produced....
Prokaryotic mRNA usually encodes for more than one protein while eukaryotic mRNA a single protein. Eukaryotic...
Prokaryotic mRNA usually encodes for more than one protein while eukaryotic mRNA a single protein. Eukaryotic DNA is linear and bacterial and archaeal DNA is-linear. In prokaryotes, ribosomes attach to the mRNA and start protein synthesis even before transcription is completed. Eukaryotic mRNA, rRNA, and tRNA are all highway processed. Nuclear pore complexes control the entry and exit to and from the nucleus. They will not let mRNA exit the nucleus before it is full processed. Eukaryotic and archaeal DNA...
UNIT V Chapter 12,13,814 WORKSHEET
UNIT V Chapter 12,13,814 WORKSHEET1. DNA geneA. Complementary to Cytosine2. Transcription 3. Sugar-Phosphate sackbone 4. IntronsB. With proteins makes up ribosomes5. Semi-conservative6. tRNA.E. Uprights (sides) of DNA "ladder"7. DNA Ligase.F. Part of a gene that gets spliced out during RNA processing G. Enzyme that joins lagging strand fragments of DNA or "sticky ends"9. Guanine?10. Anti-codon H. Molecule that carries amino acid to translation site1. New DNA contains one old and one new strand12. Nucleus 13. Point mutation 14. Deletion mutationA....
DNA DNA Replication: ONA Because DNA Is the ge m Tumes and heart e ine in...
DNA DNA Replication: ONA Because DNA Is the ge m Tumes and heart e ine in process called DNA curs in the nucleus of s acest FS Parent strand Parent strand Newly replicated DNA Newly replicated DNA- SA0 Daughter DNA molecule Daughter DNA molecule Figure 8.2: Overview of DNA replication and illustration of complementary base pairing. DNA must replicate before cell division so that each new daughter cell receives an exact copy of the parent DNA. 1. Replication begins when...
13. Why are ribonucleoside triphosphates the monomers required for RNA synthesis rather than ribonucleoside monophosphates? A....
13. Why are ribonucleoside triphosphates the monomers required for RNA synthesis rather than ribonucleoside monophosphates? A. Only ribonucleoside triphosphates contain the sugar ribose. B. Ribonucleoside triphosphates have low potential energy, making the polymerization reaction endergonic. C. Ribonucleoside triphosphates have high potential energy, making the polymerization reaction exergonic. D. Ribonucleoside monophosphates cannot form complementary base pairs with the DNA template. E. Ribonucleoside triphosphates are not used, rather all use deoxyriboside triphosphates. 14. How is a mutation in a bacterial cell that...
answer all pls 5 Figure K 3 19. Which of the bonds in Figure K above...
answer all pls
5 Figure K 3 19. Which of the bonds in Figure K above are hydrogen bonds? A. 1 only B. 1&2 C. 2 only D. 3 only E. 4 only 20. What macromolecule is shown in Figure K above? A. A protein B. DNA C. A triglyceride D. A carbohydrate E. RNA Figure M CH3 он NH2 21. How many asymmetric carbons does the molecule in Figure M have? A. 3 B. 2 C.4 D.1 E.O 22....
IDIOSY CORE Nne Lecture test 2 on the chemicals of Lite Name: 51. Picture a globular...
IDIOSY CORE Nne Lecture test 2 on the chemicals of Lite Name: 51. Picture a globular protein in the cytoplasm of a cell. Where would you find the following amino acids: alanine and serine? COOCOO A Serine would be in the interior, and alanine would be on the exterior of the globular protein HN-C-H HŇ-Ć-H R Alanine would be in the Interior and serine would be on the exterior of the CHOH CH3 globular protein C Both serine and alanine...
The nonprotein portion required by complex enzymes for proper functioning called a(en) _________. zymogen substrate inhibitor cofactor activator Which of the following are required to form a DNA nucleotide? ribose and phosphate deoxyribose and phosphate ribose, phosphate, and a base deoxyribose and a base deoxyribose phosphate, and a base How many hydrogen bonds link the following two strands of DNA 2 3 8 14 16 Which of the following enzymes is NOT involved in replication? DNA polymerase DNA ligase peptidyl...
please help with these. if you answer all of them I'll
be sure to give a thumbs up.
please explain them so I can understand them, especially 28 and 26.
thanks!
13. What would be the MOST likely effect of mutating the consensus sequence found at the 5' splice site of an intron? 1. A longer than normal mRNA would be produced. 2. A shorter than normal protein would be produced. 3. A longer than normal DNA would be produced....
Prokaryotic mRNA usually encodes for more than one protein while eukaryotic mRNA a single protein. Eukaryotic DNA is linear and bacterial and archaeal DNA is-linear. In prokaryotes, ribosomes attach to the mRNA and start protein synthesis even before transcription is completed. Eukaryotic mRNA, rRNA, and tRNA are all highway processed. Nuclear pore complexes control the entry and exit to and from the nucleus. They will not let mRNA exit the nucleus before it is full processed. Eukaryotic and archaeal DNA...
UNIT V Chapter 12,13,814 WORKSHEET1. DNA geneA. Complementary to Cytosine2. Transcription 3. Sugar-Phosphate sackbone 4. IntronsB. With proteins makes up ribosomes5. Semi-conservative6. tRNA.E. Uprights (sides) of DNA "ladder"7. DNA Ligase.F. Part of a gene that gets spliced out during RNA processing G. Enzyme that joins lagging strand fragments of DNA or "sticky ends"9. Guanine?10. Anti-codon H. Molecule that carries amino acid to translation site1. New DNA contains one old and one new strand12. Nucleus 13. Point mutation 14. Deletion mutationA....
DNA DNA Replication: ONA Because DNA Is the ge m Tumes and heart e ine in process called DNA curs in the nucleus of s acest FS Parent strand Parent strand Newly replicated DNA Newly replicated DNA- SA0 Daughter DNA molecule Daughter DNA molecule Figure 8.2: Overview of DNA replication and illustration of complementary base pairing. DNA must replicate before cell division so that each new daughter cell receives an exact copy of the parent DNA. 1. Replication begins when...
13. Why are ribonucleoside triphosphates the monomers required for RNA synthesis rather than ribonucleoside monophosphates? A. Only ribonucleoside triphosphates contain the sugar ribose. B. Ribonucleoside triphosphates have low potential energy, making the polymerization reaction endergonic. C. Ribonucleoside triphosphates have high potential energy, making the polymerization reaction exergonic. D. Ribonucleoside monophosphates cannot form complementary base pairs with the DNA template. E. Ribonucleoside triphosphates are not used, rather all use deoxyriboside triphosphates. 14. How is a mutation in a bacterial cell that...
answer all pls
5 Figure K 3 19. Which of the bonds in Figure K above are hydrogen bonds? A. 1 only B. 1&2 C. 2 only D. 3 only E. 4 only 20. What macromolecule is shown in Figure K above? A. A protein B. DNA C. A triglyceride D. A carbohydrate E. RNA Figure M CH3 он NH2 21. How many asymmetric carbons does the molecule in Figure M have? A. 3 B. 2 C.4 D.1 E.O 22....
IDIOSY CORE Nne Lecture test 2 on the chemicals of Lite Name: 51. Picture a globular protein in the cytoplasm of a cell. Where would you find the following amino acids: alanine and serine? COOCOO A Serine would be in the interior, and alanine would be on the exterior of the globular protein HN-C-H HŇ-Ć-H R Alanine would be in the Interior and serine would be on the exterior of the CHOH CH3 globular protein C Both serine and alanine...
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