Which of the following best describes what is able to influence the level of eukaryotic DNA compaction? H1 histone protein phosphorylation of histone tails acetylation of histone tails All of the other answers are correct methylation of histone tails
Q: Nucleosomes are the ball-like structures around which the double helix winds. What proteins make up…
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Q: True or False 1. Histone proteins are able to associate with DNA segments because of the anionic…
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Q: Which statement is FALSE? Group of answer choices Histones are very conserved at the primary…
A: 2nd statementis false. H1 doesn't contain histone fold domain. H2A, H2B, H3 and H4 have HFD
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Q: HDAC's are important enzymes involved in the regulation of Gene expression. This is because a. They…
A: HAT stands for Histone acetylase. HDAC stands for Histone Deacetylase.
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Q: In a typical eukaryotic cell, would you expect to find more molecules of the H1 histone or more…
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Q: An article entitled “Nucleosome Positioning at the Replication Fork” states: “both the ‘old’…
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Q: In eukaryotic cells, the nucleosomal core contains which arrangement of histone proteins? A. two H1,…
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Q: Which structure in the eukaryotic chromosome is about 11 nm in diameter, contains 8 histone proteins…
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Q: How does histone acetylation change chromatin structure? Group of answer choices 1. Histones lose…
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Q: Histone proteins contain tail amino acids that are positively charged. Which of the following…
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Q: Which histone helps stabilize the solenoid structure of eukaryotic chromatin? H4 H3 H2B H2A H1
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Q: Which one of the following statements about nucleosomes is false? a) The DNA double helix wraps…
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Q: The nucleosomal core in eukaryotes consists of all of the following histone proteins except:…
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Q: If a section of a chromosome is heavily methylated, which of the following is likely to be true?…
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Q: Histones are: Group of answer choices Are present in eukaryotic, but not prokaryotic chromosomes…
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Q: 22. With which protein(s) is a condensed eukaryotic chromosome NOT known to be associated? 1. core…
A: Question - 22.With which protein(s) is a condensed eukaryotic chromosome NOT known to be associated?…
Q: Since eukaryotic chromosomes are assembled with histone proteins, how are replication and…
A: Eukaryotes are the organisms that contain a nuclear membrane covering the nucleus. But the…
Q: Which structure in the eukaryotic chromosome is about 700-840 nm in diameter, contains scaffold…
A: One solenoid is composed of 6 nucleosomes. It is defined as a packaging material of DNA and is a…
Q: Name and describe two important functions of eukaryotic DNA that do not code for protein.
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Q: Spliceosomes include all of the following EXCEPT enzymes catalyzing acetylation of histone…
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Q: You are studying a small eukaryotic gene of about 2000 bp in length. About how many copies of…
A: There are histone octamers found in the genetic arrangement whose knowledge can be used to answer…
Q: Which structure in the eukaryotic chromosome is about 2 nm in diameter, contains no histone proteins…
A: Transcription is the cycle by which the data in a strand of DNA is duplicated into another molecule…
Q: Polytene chromosomes are giant chromosomes found in cells of the salivary glands of larval fruit…
A: Polytene chromosomes are large chromosomes contain thousands of DNA strands. The dipterans larvae's…
| H1 histone protein |
| phosphorylation of histone tails |
| acetylation of histone tails |
| All of the other answers are correct |
| methylation of histone tails |
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- . Which structure in the eukaryotic chromosome is about 700-840 nm in diameter, contains scaffold proteins, lamins, and topoisomerases, in addition to histone proteins, and is transcriptionally silent? the radial minibands the solenoid the nucleosome naked DNA the euchromatin. Which structure in the eukaryotic chromosome is about 2 nm in diameter, contains no histone proteins associated with double-stranded DNA, and is easily accessible to transcription? the heterochromatin the nucleosome the solenoid the naked DNA the radial minibandsWhich structure in the eukaryotic chromosome is about 11 nm in diameter, contains 8 histone proteins and a short region of double-stranded DNA, and is easily accessible to transcription? the heterochromatin the supersolenoid the radial minibands the solenoid the nucleosome
- Nucleosomes are the ball-like structures around which the double helix winds. What proteins make up nucleosomes? Group of answer choices hertone histone heterochromatin euchromatinEukaryotic DNA is typically organized into two major regions called euchromatin and heterochromatin. Which of the following applies to euchromatin? They are regions of little or no transcription activity. They are regions of highly condensed chromatin. They are regions that are uncoiled and active in transcription. They may refer to regions near the ends of chromosome (telomeres). They refer to regions that contain the centromere.Define the following terms:a. histonesb. heterochromatinc. euchromatind. intergenic sequencese. tandem repeats
- If a section of a chromosome is heavily methylated, which of the following is likely to be true? Group of answer choices That portion of the chromosome is transcriptionally active That portion of the chromosome consists of euchromatin That portion of the chromosome is transcriptionally quiet RNA polymerase will have easy access to the DNA in that regionA mutation in which of these proteins will lead to increased mutations in all daughter cells? A. helicase B. topoisomerase C. ligase D. DNA polymeraseWhat is a puff on a polytene chromosome? a highly condensed region of DNA a region containing the centromere a region of very high transcription activity all of the other answers are correct a heterochromatic region
- Which region of eukaryotic DNA prevents single-strand breaks and chromosome unraveling, and serves as a signal to DNA repair enzymes that the linear chromosome does not need repairing? the centromere the terminator the promoter the telomere the operatorConsider the following segment of DNA, which is part of a linear chromosome: LEFT 5’.…TGACTGACAGTC….3’ 3’.…ACTGACTGTCAG….5’ RIGHT During RNA transcription, this double-strand molecule is separated into two single strands from the right to the left and the RNA polymerase is also moving from the right to the left of the segment. Please select all the peptide sequence(s) that could be produced from the mRNA transcribed from this segment of DNA. (Hint: you need to use the genetic codon table to translate the determined mRNA sequence into peptide. Please be reminded that there are more than one reading frames.) Question 6 options: ...-Asp-Cys-Gln-Ser-... ...-Leu-Thr-Val-... ...-Thr-Val-Ser-... ...-Leu-Ser-Val-... ...-Met-Asp-Cys-Gln-...One of the following is a characteristic of eukaryotic genetic material? 1. Eukaryotic genetic material is compacted by wrapping the double-helix around histone proteins to form nucleosomes. 2. Eukaryotic genetic material consists of supercoiled circular DNA molecules complexed with proteins into chromosomes. 3. Eukaryotic genetic material consists of relaxed linear DNA molecules complexed with RNA into a 30 nm fiber. 4. Eukaryotic genetic material is compacted by folding linker regions around non-histone proteins to form a scaffold.
