Which enzyme will reestablish the methylation pattern on a newly synthesized DNA Methyl Polymerase Maintenance metyltransferase...
Which enzyme will reestablish the methylation pattern on a newly synthesized DNA
Methyl Polymerase
Maintenance metyltransferase
Methyl Ligase
Histone decaetylases
Histone Acetylases
Homework Answers
Answer- maintenance methyltransferase
Explanation- The enzyme methyl transferase transfers methyl group to the newly synthesized DNA strand when old DNA strand is already methylated. This reestablishment of methylation pattern occurs at the time of DNA replication where daughter DNA is synthesized from parent DNA and as semiconservative method of DNA replication, old parental strand is already methylated but that pattern is reestablished onto new strand by this enzyme where maintenance methyl transferase transfers methyl group to the cytosine.
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Which enzyme will reestablish the methylation pattern on a newly
synthesized DNA
Methyl Polymerase
Maintenance metyltransferase...
20. Which enzyme separates the strands of the DNA helix? A. DNA Polymerase E. Single Stranded...
20. Which enzyme separates the strands of the DNA helix? A. DNA Polymerase E. Single Stranded Binding Proteins B. Ligase F. Primase C. Helicase G. Lagging Strand D. Topoisomerase H. Leading Strand 21. Which enzyme joins newly synthesized DNA fragments on the lagging strand? A. DNA Polymerase E. Single Stranded Binding Proteins B. Ligase F. Primase C. Helicase G. Lagging Strand D. Topoisomerase H. Leading Strand 22. In a PCR reaction, at which temperature do the two strands of DNA...
Which of the following statements about DNA replication is FALSE? Primase synthesizes the primers. DNA polymerase...
Which of the following statements about DNA replication is FALSE? Primase synthesizes the primers. DNA polymerase is required to add new nucleotides to the growing ends of the DNA strands. DNA ligase joins the small DNA fragments of the lagging strand. Only one strand of the parent DNA serves as a template for a newly synthesized complementary strand.
Which of the following statements about the polymerase chain reaction (PCR) is false? a The DNA...
Which of the following statements about the polymerase chain reaction (PCR) is false? a The DNA ligase used is from a thermophilic bacteria so that it can resist denaturation at high temperatures. b Newly synthesized DNA must be heat-denatured before the next round of DNA synthesis begins. c The boundaries of the amplified DNA segment are determined by the synthetic oligonucleotides used to prime DNA synthesis. d DNA amplified by PCR can be cloned.
Match the following (Total 24 pts) Enzyme responsible for joining DNA strands together The nascent DNA...
Match the following (Total 24 pts) Enzyme responsible for joining DNA strands together The nascent DNA strand that is being synthesized in the same direction as the replication fork. Enz 39 DNA polymerase 40 DNA helicase responsible for transcribing RNA 41DNA sliding clamp 42 Single Stranded Binding Proteins DShort, newly synthesized DNA fragments 43 RNA primer 44 DNA ligase formed on the lagging template strand E Abundle or proteins that assist in the rate of transcription of DNA to mRNA....
Match the terms with their appropriate definitions 1. The pattern of histone modification acts much like...
Match the terms with their appropriate definitions 1. The pattern of histone modification acts much like a language or code in specifying alterations in chromatin structure. (Click to select) 2. Enzymes which acetylate the positively charged lysines within the core histone proteins. (Click to select) 3. Enzyme which attaches a methyl group to the number 5 position of the cytosine base, forming 5-methylcytosine. (Click to select) 4. Proteins which bind methylated sequences. (Click to select) 5. The methylation of DNA...
Match the terms with their appropriate definitions 1. The pattern of histone modification acts much like...
Match the terms with their appropriate definitions 1. The pattern of histone modification acts much like a language or code in specifying alterations in chromatin structure. (Click to select) 2. Enzymes which acetylate the positively charged lysines within the core histone proteins. (Click to select) 3. Enzyme which attaches a methyl group to the number 5 position of the cytosine base, forming 5-methylcytosine. (Click to select) 4. Proteins which bind methylated sequences. (Click to select) 5. The methylation of DNA...
AS Part A Which of the following events occurs during DNA replication? All methylation of the...
AS Part A Which of the following events occurs during DNA replication? All methylation of the DNA is lost at the first round of replication Methylated DNA is copied in the cytoplasm, and unmethylated DNA is copied in the nucleus Methylation of the DNA is maintained because DNA polymerase directly incorporates methylated nucleotides into the new strand opposite any methylated nucleotides in the template. Methylation of the DNA is maintained because methylation enzymes act at DNA sites where ane strand...
Two identical twins who showed very similar methylation patterns when they were 4 years old show...
Two identical twins who showed very similar methylation patterns when they were 4 years old show very divergent patterns at age 40. This divergence is most likely due to a different alternative splicing in the two individuals Ob different levels of histone acetyltransferase in the two individuals. Oc environmental differences that they experienced as adults. O d. different genomic imprinting in the two individuals. O e differences in their experiences in utero Suppose that a certain enzyme is synthesized whenever...
Which of the following is not true of DNA methylation? A.The methyl group is attached via...
Which of the following is not true of DNA methylation? A.The methyl group is attached via a strong carbon-carbon bond B.It is heritable across cell division C. t is considered stable enough to mediate X-inactivation D. It interferes with cytosine-guanine binding
D Question 1 (Matching) Match the enzyme/structure with its role in DNA replication. DNA polymerase synthesizes...
D Question 1 (Matching) Match the enzyme/structure with its role in DNA replication. DNA polymerase synthesizes the new strand of RNA primase Choose synthesizes the new strand of DNA synthesizes a short fragment of complementary RNA attach to template DNA strands to prevent hydrogen bonding Uncoils the supercoil of prokaryotic chromosomes connects Okazaki fragments of new lagging strand of DNA unwinds and unzips the double stranded DNA Single stranded binding proteins (SSB's) DNA Ligase [Choose] Helicase [Choose) DNA Gyrase (Choose]...
20. Which enzyme separates the strands of the DNA helix? A. DNA Polymerase E. Single Stranded Binding Proteins B. Ligase F. Primase C. Helicase G. Lagging Strand D. Topoisomerase H. Leading Strand 21. Which enzyme joins newly synthesized DNA fragments on the lagging strand? A. DNA Polymerase E. Single Stranded Binding Proteins B. Ligase F. Primase C. Helicase G. Lagging Strand D. Topoisomerase H. Leading Strand 22. In a PCR reaction, at which temperature do the two strands of DNA...
Match the following (Total 24 pts) Enzyme responsible for joining DNA strands together The nascent DNA strand that is being synthesized in the same direction as the replication fork. Enz 39 DNA polymerase 40 DNA helicase responsible for transcribing RNA 41DNA sliding clamp 42 Single Stranded Binding Proteins DShort, newly synthesized DNA fragments 43 RNA primer 44 DNA ligase formed on the lagging template strand E Abundle or proteins that assist in the rate of transcription of DNA to mRNA....
Match the terms with their appropriate definitions 1. The pattern of histone modification acts much like a language or code in specifying alterations in chromatin structure. (Click to select) 2. Enzymes which acetylate the positively charged lysines within the core histone proteins. (Click to select) 3. Enzyme which attaches a methyl group to the number 5 position of the cytosine base, forming 5-methylcytosine. (Click to select) 4. Proteins which bind methylated sequences. (Click to select) 5. The methylation of DNA...
Match the terms with their appropriate definitions 1. The pattern of histone modification acts much like a language or code in specifying alterations in chromatin structure. (Click to select) 2. Enzymes which acetylate the positively charged lysines within the core histone proteins. (Click to select) 3. Enzyme which attaches a methyl group to the number 5 position of the cytosine base, forming 5-methylcytosine. (Click to select) 4. Proteins which bind methylated sequences. (Click to select) 5. The methylation of DNA...
AS Part A Which of the following events occurs during DNA replication? All methylation of the DNA is lost at the first round of replication Methylated DNA is copied in the cytoplasm, and unmethylated DNA is copied in the nucleus Methylation of the DNA is maintained because DNA polymerase directly incorporates methylated nucleotides into the new strand opposite any methylated nucleotides in the template. Methylation of the DNA is maintained because methylation enzymes act at DNA sites where ane strand...
Two identical twins who showed very similar methylation patterns when they were 4 years old show very divergent patterns at age 40. This divergence is most likely due to a different alternative splicing in the two individuals Ob different levels of histone acetyltransferase in the two individuals. Oc environmental differences that they experienced as adults. O d. different genomic imprinting in the two individuals. O e differences in their experiences in utero Suppose that a certain enzyme is synthesized whenever...
D Question 1 (Matching) Match the enzyme/structure with its role in DNA replication. DNA polymerase synthesizes the new strand of RNA primase Choose synthesizes the new strand of DNA synthesizes a short fragment of complementary RNA attach to template DNA strands to prevent hydrogen bonding Uncoils the supercoil of prokaryotic chromosomes connects Okazaki fragments of new lagging strand of DNA unwinds and unzips the double stranded DNA Single stranded binding proteins (SSB's) DNA Ligase [Choose] Helicase [Choose) DNA Gyrase (Choose]...
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