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Which of the following statements about okazaki fragment in e coli is true?
Wiki User
∙ 7y ago
They are formed on the lagging strand of DNA.
Wiki User
∙ 7y ago
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What is a okazaki fragment?
Okazaki fragments are only used on the Lagging strand (the one going on 5' to 3' direction) never on the leading one. In fact all that the leading strand uses is the helicase to unwind DNA and DNA polimerase III to form the complementary strand allways in 3' to 5' (the leading strand) direction. The big problem of the laggind strand and the reason that Okazaki fragments exist and all other complementary DNAs (polimerace I, ligase, SSB, primace) is that it runs from 3' to 5'. Now what Okazaki fragments are, is temporary pieces of complementary DNA (iniciated by a primer)that are not joined together, but that later on before it goes back to the helix form will be joined togather by DNA ligase. Here I attache a link to a flash video that will make u understand better! http://www.mcb.harvard.edu/Losick/images/TromboneFINALd.swf
Which of the following are food-borne illnesses?
e. coli
Which of the following is a type of food-borne illness Gout or Heart disease or Influenza or E. coli?
E. coli
What are the examples of monera?
Methanogens (Archaea) , Escherichia coli (Eubacteria) following are example of monera .
What are the short segments produced in the formation of the 3'-5' strand of DNA called?
During DNA replication, the lagging strand is replicated ~1000 (E. coli) base pairs at a time, forming numerous "Okazaki fragments".Okazaki fragments form because polymerase is only able to replicate DNA in one direction, but DNA is double stranded, with the strands running anti parallel (in opposite directions). The polymerase waits for a region of DNA to be unwound, and while the leading strand is replicated continuously, on the lagging strand the polymerase waits until a region of single stranded DNA is produced before replicating it. This discontinous replication forms the Okazaki fragments, which can then be joined together by ligase (although a different polymerase enzyme, pol I in E. coli, is needed as well to replace the RNA primers with DNA).
What is the scientific name for E coli?
Escherichia coli
What is the full name of E. Coli?
Escherichia coli
What is the full scientific name for E. coli?
The full scientific name for E. coli is Escherichia coli.
What are some poisonings?
Common Types of food poisoning include the following: - Salmonella - Escherichia coli (E.coli) - Listeriosis - Mushrooms
What is B. coli?
Balantidium coli
What is the full scientific name for E coli bacteria?
Escherichia coli
What are some food poisonings?
Common Types of food poisoning include the following: - Salmonella - Escherichia coli (E.coli) - Listeriosis - Mushrooms
