Question

1.What is the role of telomerase in DNA replication? a) join Okazaki fragments together b) synthesize...

1.What is the role of telomerase in DNA replication?

a) join Okazaki fragments together

b) synthesize RNA nucleotides to make a primer

c) catalyze the lengthening of the ends of linear chromosomes

d) are part of the initiation of replication at the origin of replication

2. RNA polymerase for mRNA transcription and DNA polymerase in replication differ in that

a) RNA polymerase uses RNA as a template, and DNA polymerase uses a DNA template.

b) RNA polymerase does not need to separate the two strands of DNA in order to synthesize an RNA copy, whereas DNA polymerase must unwind the double helix before it can replicate the DNA.

c) RNA polymerase uses a single-stranded DNA template, and DNA polymerase uses a double-stranded DNA template.

d) RNA polymerase can initiate RNA synthesis without a primer, but DNA polymerase requires an RNA primer.

Homework Answers

Answer #1

1.The correct answer is option c.

Role of telomerase in DNA replication is catalyzing the lengthening of the ends of linear chromosomes.Telomerase adds complementary RNA bases to 3' end of the DNA strand.

Okazaki fragments are joined together by DNA ligase.

Primase helps in the synthesis of short RNA segment called Primer which is required for DNA replication.

DNA polymerase alpha primase complex helps in the initiation of replication at Ori.

2.The correct answer is option D.

RNA polymerase can initiate RNA synthesis without a primer,but DNA polymerase requires an RNA primer.

Both DNA and RNA polymerases use DNA as template.

Both DNA and RNA polymerases need to separate the two strands of DNA before replication and transcription respectively.

Both DNA and RNA polymerases use single stranded DNA template.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The prokaryotic replication enzyme that removes and replaces primers is _______. a. ligase b. DNA polymerase...
The prokaryotic replication enzyme that removes and replaces primers is _______. a. ligase b. DNA polymerase I c. primase d. DNA polymerase II Primers are found on: a. only Okazaki fragments. b. both the leading and lagging strands. c. only the leading strand. d. only the lagging strand. e. DNA polymerase III. Which replication enzyme seals the nicks between Okazaki fragments? a. Primase b. DNA polymerase I c. DNA LIgase d. Topoisomerase The first step in the replication of DNA...
What is the funcional of the enzyme DNA polymerase in replication? A) It reads the sequence...
What is the funcional of the enzyme DNA polymerase in replication? A) It reads the sequence of nucleotides on the parental strand of DNA and catalyzes the polymerization of a complementary daughter DNA strand. B) Its reads codond on a DNA molecule and catalyzes the polymerization of a complementary mRNA strand, C) It unwinds the double helix of DNA and separetes the two strand. D) It connects the short Okazaki fragments formed in the lagging strand. E) It carries the...
DNA Replication 1. Define DNA replication. 2. What is the role of base pairing in DNA...
DNA Replication 1. Define DNA replication. 2. What is the role of base pairing in DNA replication? Would this process of replication be possible without base pairing? 3. Describe the process of semi-conservative DNA replication. 4. Describe the experiment that led to the discovery that DNA was replicated through a semi-conservative process. 5. Define replication origins. 6. Why is the specific sequence of the replication origin relevant to DNA replication? 7. Describe the process of DNA replication, including the enzymes...
Q1 : put the following of protein synthesis transcription steps in the correct order A- the...
Q1 : put the following of protein synthesis transcription steps in the correct order A- the RNA-pol stops transcribed when reaching a repetitive sequences of T nucleotides B- the 3"segments of the nascent RNA hybridizes with the DNA template , and its 5'end extends out the transcription C- after DNA transcription passes , the two DNA strands reform D- RNA-pol start move on the DNA template melting and unwinding the double helix F- the transcript RNA strand is released G-...
QUESTION 21 Which molecule or enzyme mediates the process of Transcription? a. RNA Polymerase b. RIbosomes...
QUESTION 21 Which molecule or enzyme mediates the process of Transcription? a. RNA Polymerase b. RIbosomes c. Primase d. DNA Polymerase e. ribosomal RNA QUESTION 22 Which site of the tRNA molecule binds to the mRNA molecule? a. Poly-A tail b. anti-codon c. codon d. exon e. intron QUESTION 23 Which of the following accurately describes the Central Dogma? a. RNA to Protein to DNA b. DNA to Protein to RNA c. DNA to RNA to Protein d. Protein to...
What can you infer from the information presented in this table? Proteins Involved in DNA Synthesis...
What can you infer from the information presented in this table? Proteins Involved in DNA Synthesis Process Protein Function Opening the helix Helicase SS binding proteins Topoisomerase Breaks hydrogen bonds between base pairs Stabilizes single-stranded DNA Breaks and rejoins DNA strand to untwist the double helix Synthesis of leading strand Primase DNA polymerase III Sliding clamp Catalyzes the synthesis of the RNA primer Adds bases to the growing DNA strand Holds DNA polymerase in place during strand elongation Synthesis of...
1.When a protein binds to DNA at a site defined by a particular nucleotide sequence, with...
1.When a protein binds to DNA at a site defined by a particular nucleotide sequence, with which parts of the DNA does the protein primarily interact? A. the phosphate and deoxyribose groups in the DNA backbone B. the phosphate and deoxyribose groups in the DNA backbone, and hydrophobic interactions with the nucleotide bases C. nucleotide bases within the major grooves of the DNA D. nucleotide bases within the major and minor grooves of the DNA E. none of the above...
ANSWER KEY Recombinant DNA Anticodon Mutation Uracil Codon Replication tRNA Thymine Antiparallel Translation Transcription Polymerase Chain...
ANSWER KEY Recombinant DNA Anticodon Mutation Uracil Codon Replication tRNA Thymine Antiparallel Translation Transcription Polymerase Chain Reaction Match the correct answer with the corresponding statement. A base found in RNA but not DNA A base found in DNA but not RNA The opposite directions run by two strands of DNA double helix Protein synthesis When mRNA is synthesized from DNA When a strand of DNA makes a new copy prior to cell division The RNA that carries amino acids to...
QUESTION 1 * Compared to the leading strand, the lagging strand requires ________ primers.?? A. more...
QUESTION 1 * Compared to the leading strand, the lagging strand requires ________ primers.?? A. more B. the same number of C. less QUESTION 2 * Which enzyme synthesizes the majority of the DNA polymer for both the leading and lagging strands??? A. DNA polymerase I B. primase C. DNA polymerase III D. helicase QUESTION 3 * For each origin of replication, how many DNA polymerase III enzymes are needed??? A. 1 B. 8 C. 4 D. 2 QUESTION 4...
1. This type of bond is used to link monomers of nucleic acids together Select one:...
1. This type of bond is used to link monomers of nucleic acids together Select one: Peptide Ionic Hydrogen Glycosidic Phosphodiester 2. Which is true of DNA polymerase? Select one: One of its functions is to uncoil the double stranded DNA It hooks nucleotides together in a 5' to 3' direction It does not recognize RNA primers, thus controlling replication It hooks nucelotides together in any direction It does not make Okazaki fragments 3. Chargaff's contribution to the identification of...