Question

In: Biology

In a linear fragment of DNA, the ends can not be replicated by DNA polymerases.

 

  1. What are the SD sequences?
  1. Found in the promoters of RNA polymerase I
  2. Found in the promoters of RNA polymerase II
  3. Found in the promoters of RNA polymerase III
  4. Ribosome binding sites in prokaryotic mRNA
  5. Ribosome binding sites in eukaryotic mRNA
  1. In a linear fragment of DNA, the ends can not be replicated by DNA polymerases.      Eukaryotes use telomerase enzyme to replicate chromosome tips. This enzyme has
  1. DNA polymerase activity
  2. RNA polymerase activity
  3. Reverse transcriptase activity
  4. DNA ligase activity
  5. DNA helicase activity

Solutions

Expert Solution

A. SD sequences - d. Ribosome binding sites in prokaryotic mRNA

explanation - Shine darlago sequeence is a sequence which helps in the attachment mrna of the prokaryotic mrna with the ribosomes small subunit.

A. In a linear fragment of DNA, the ends can not be replicated by DNA polymerases. Eukaryotes use telomerase enzyme to replicate chromosome tips. This enzyme has - RNA polymerase activity

explanation - Eukaryotic dna ploymerase cannot replicate the end of dna so telomerase enzymes which is a rna polymerase thay used to extend certain base pair which helps in the replication of the end region.


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