Name the known DNA polymerases. Which DNA polymerases replicate DNA in the 5’-3’ direction? Which DNA...
Name the known DNA polymerases.
Which DNA polymerases replicate DNA in the 5’-3’ direction?
Which DNA polymerase is responsible for elongating the replicating strand?
Which DNA polymerases function in DNA repair?
Which DNA polymerase can remove either DNA or RNA nucleotides from the 5’ end of
a nucleic acid strand?
Homework Answers
- Enzymes involved in synthesizing or replicating DNA are DNA polymerases.
- DNA polymerases add deoxynucleotides according to template DNA strand during synthesis of complementary DNA strand.
- Thus due to action of DNA polymerases, a pair of identical DNA strands gets synthesized.
- These DNA polymerase adds the deoxynucleotides to the 3' end of a newly synthesized strand.
- The parental strand is in 3'-------->5' direction.
- DNA polymerase extends the newly synthesized strand from 5'------->3' direction by adding deoxynucleotides to the 3' end.
- Prokaryotes have three types of DNA polymerases, I,II and III.
- DNA polymerase I is involved in DNA repair and RNA primer removal and in replicating in either in 3'------>5' or 5'---------->3' direction..
- DNA polymerase II is involved in DNA repair and in replicating in 3'------->5' direction.
- DNA polymerase III is involved in DNA replication, proof reading, editing and in replicating in 3'------->5' direction.
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Name the known DNA polymerases.
Which DNA polymerases replicate DNA in the 5’-3’ direction?
Which DNA...
The primary reason leading and lagging strand synthesis is different is because O DNA polymerase only...
The primary reason leading and lagging strand synthesis is different is because O DNA polymerase only adds new nucleotides to the 3’end of a nucleic acid O DNA polymerase only adds new nucleotides to the 5' end of a nucleic acid O RNA polymerase only adds new nucleotides to the 3' end of a nucleic acid O RNA polymerase only adds new nucleotides to the 5' end of a nucleic acid
DNA polymerases are processed, which means that they remain tightly associated with the while moving rapidly...
DNA polymerases are processed, which means that they remain tightly associated with the while moving rapidly and adding nucleotides to the growing daughter strand. Which piece of the machinery accounts for this characteristic? (a) helicase (b) sliding elamp (c) single-strand binding protein (d) primase RNA in cells differs from in that _____ (A) it contains the base uracil, which pairs with cytosine (b) it is single stranded and cannot form base pairs (c) it is single stranded and can fold...
Why were Meselson and Stahl unable to distinguish between the dispersive and the semiconservative models following...
Why were Meselson and Stahl unable to distinguish between the dispersive and the semiconservative models following only one round of DNA replication? 2. Describe in order, the four repeating steps that repeat over and over on the discontinuous lagging strand of DNA replication and name the major proteins required to carry out each of these steps in E. coli. The first function is given . I. Function: Create RNA primer Enzyme: II. Function: Enzyme: III. Function: Enzyme: IV. Function: Enzyme:...
Why does a new DNA strand elongate only in the 5' to 3' direction during DNA...
Why does a new DNA strand elongate only in the 5' to 3' direction during DNA replication? The polarity of the DNA molecule prevents addition of nucleotides at the 3' en Replication must progress toward the replication fork. DNA polymerase can add nucleotides only to the free 3' end. DNA polymerase begins adding nucleotides at the 5' end of the template,
Which of the following enzymes catalyzes the elongation of a nucleic strand in the 3'-->5' direction?...
Which of the following enzymes catalyzes the elongation of a nucleic strand in the 3'-->5' direction? A) DNA polymerase I ***This is the answer choice I originally put and it was incorrect*** B) DNA polymerase III C) RNA primase D) Reverse transcriptase E) All of the above
Only answers please don’t show work 33) Viral DNA incorporated into host cell DNA is known...
Only answers please don’t show work
33) Viral DNA incorporated into host cell DNA is known as a/an A) phage. B) envelope C) capsid. 33) 34) How is transformation in bacteria most A) the creation of a strand of RNA from DNA molecule B) the type of semiconservative by DNA C) the infection of cells by a phage DNA molecule D) the e of a strand of DNA from an RNA molecule E) assimilation of external DNA into a cell...
1. DNA Structure and Replication fill in the blanks. 10pts and , have two nitrogenous rings...
1. DNA Structure and Replication fill in the blanks. 10pts and , have two nitrogenous rings and are a. The bases, called direction and reads the b. DNA Polymerase synthesizes new DNA in the template DNA strand in the direction. c. DNA polymerases use -exonuclease activity to proofread newly synthesized DNA. Whereas, DNA Pol I uses _-exonuclease activity to remove RNA primers. d. The enzyme telomerase synthesizes using as a template. e. DNA Replication begins at the and two ,,...
Which of the following statements about eukaryotic DNA replication is false? A) DNA polymerase can add...
Which of the following statements about eukaryotic DNA replication is false? A) DNA polymerase can add new nucleotides to either free 3'- or 5'-end B) RNA primers must be removed and rejected by the deoxynucleotides C) RNA primers must be laid down during DNA replication for synthesis of new DNA that starts at the 3'-OH of the primer ends D) Elongation of the DNA strand during replication requires primers with free 3'OH end E) The very end of the chromosome...
QUESTION 13 A new DNA strand elongates only in the to direction because A) DNA polymerase...
QUESTION 13 A new DNA strand elongates only in the to direction because A) DNA polymerase begins adding nucleotides at the 5' end of the template B) the polarity of the DNA molecule prevents addition of nucleotides at the 3'end OB) the C) replication must progress toward the replication fork D) DNA polymerase can add nucleotides only to the free 3'end QUESTION 14
1)Repairing damaged DNA is essential to maintaining the integrity of the genome. One type of repair...
1)Repairing damaged DNA is essential to maintaining the integrity of the genome. One type of repair is known as nucleotide excision repair. In this system, which order do the necessary enzymes act? A) exonuclease, DNA polymerase III, RNA primase B) helicase, DNA polymerase I, DNA ligase C) DNA ligase, nuclease, helicase D) DNA polymerase I, DNA polymerase III, DNA ligase E) endonuclease, DNA polymerase II, DNA ligase 2) What might be the result if all cells had functioning telomerase? A)...
The primary reason leading and lagging strand synthesis is different is because O DNA polymerase only adds new nucleotides to the 3’end of a nucleic acid O DNA polymerase only adds new nucleotides to the 5' end of a nucleic acid O RNA polymerase only adds new nucleotides to the 3' end of a nucleic acid O RNA polymerase only adds new nucleotides to the 5' end of a nucleic acid
DNA polymerases are processed, which means that they remain tightly associated with the while moving rapidly and adding nucleotides to the growing daughter strand. Which piece of the machinery accounts for this characteristic? (a) helicase (b) sliding elamp (c) single-strand binding protein (d) primase RNA in cells differs from in that _____ (A) it contains the base uracil, which pairs with cytosine (b) it is single stranded and cannot form base pairs (c) it is single stranded and can fold...
Why does a new DNA strand elongate only in the 5' to 3' direction during DNA replication? The polarity of the DNA molecule prevents addition of nucleotides at the 3' en Replication must progress toward the replication fork. DNA polymerase can add nucleotides only to the free 3' end. DNA polymerase begins adding nucleotides at the 5' end of the template,
Only answers please don’t show work
33) Viral DNA incorporated into host cell DNA is known as a/an A) phage. B) envelope C) capsid. 33) 34) How is transformation in bacteria most A) the creation of a strand of RNA from DNA molecule B) the type of semiconservative by DNA C) the infection of cells by a phage DNA molecule D) the e of a strand of DNA from an RNA molecule E) assimilation of external DNA into a cell...
1. DNA Structure and Replication fill in the blanks. 10pts and , have two nitrogenous rings and are a. The bases, called direction and reads the b. DNA Polymerase synthesizes new DNA in the template DNA strand in the direction. c. DNA polymerases use -exonuclease activity to proofread newly synthesized DNA. Whereas, DNA Pol I uses _-exonuclease activity to remove RNA primers. d. The enzyme telomerase synthesizes using as a template. e. DNA Replication begins at the and two ,,...
QUESTION 13 A new DNA strand elongates only in the to direction because A) DNA polymerase begins adding nucleotides at the 5' end of the template B) the polarity of the DNA molecule prevents addition of nucleotides at the 3'end OB) the C) replication must progress toward the replication fork D) DNA polymerase can add nucleotides only to the free 3'end QUESTION 14
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