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What is the order of actions by rna polymerase?
Binds to DNA, makes mRNA from DNA, detaches
Repair of damaged DNA might be viewed as a race between an endonuclease and?
a DNA polymerase. The endonuclease recognizes and cleaves the damaged DNA, creating a site for repair. The DNA polymerase then fills in the gap with the correct nucleotides, restoring the integrity of the DNA molecule. This race determines whether the DNA is successfully repaired or if mutations will persist in the repaired sequence.
Which enzyme synthesizes a short RNA primer at the beginning of each origin of replication?
DNA polymerase III can add nucleotides only to a chain of nucleotides that is alreadypaired with the parent strands. Hence, DNA polymerasecannot link the first nucleotides in a newly synthesizedstrand. Instead, another enzyme, an RNA polymerasecalled primase, constructs an RNA primer, a sequence ofabout 10 RNA nucleotides complementary to the parentDNA template. DNA polymerase III recognizes the primerand adds DNA nucleotides to it to construct the new DNAstrands. The RNA nucleotides in the primers are then replacedby DNA nucleotides.
Immunity occurs when the stystem recognizes a foreighn substance and responds by producing?
Lymphocytes .
A protein on the cell membrane that recognizes and binds to specific substances is called a?
Enzyme
What is the order of actions by rna polymerase?
Binds to DNA, makes mRNA from DNA, detaches
How does the process of DNA replication change when the nitrogenous base uracil replaces thymine?
When uracil replaces thymine in DNA replication, the enzyme responsible for copying DNA, called DNA polymerase, recognizes uracil as a normal base and incorporates it into the new DNA strand. This change does not affect the overall process of DNA replication, but it can lead to errors in the genetic code since uracil is not typically found in DNA.
What event occurs directly after RNA polymerase recognizes the transcription start of a gene?
Initiation of transcription occurs, involving the unwinding of the DNA helix and the binding of RNA polymerase to the promoter region of the gene. Transcription factors and other regulatory proteins aid in the initiation process.
Repair of damaged DNA might be viewed as a race between an endonuclease and?
a DNA polymerase. The endonuclease recognizes and cleaves the damaged DNA, creating a site for repair. The DNA polymerase then fills in the gap with the correct nucleotides, restoring the integrity of the DNA molecule. This race determines whether the DNA is successfully repaired or if mutations will persist in the repaired sequence.
What do promoters mark the beginning of on prokaryotic DNA?
Promoters mark the beginning of a gene on prokaryotic DNA. They are specific sequences of DNA that RNA polymerase recognizes and binds to in order to initiate transcription of the gene.
Which enzyme synthesizes a short RNA primer at the beginning of each origin of replication?
DNA polymerase III can add nucleotides only to a chain of nucleotides that is alreadypaired with the parent strands. Hence, DNA polymerasecannot link the first nucleotides in a newly synthesizedstrand. Instead, another enzyme, an RNA polymerasecalled primase, constructs an RNA primer, a sequence ofabout 10 RNA nucleotides complementary to the parentDNA template. DNA polymerase III recognizes the primerand adds DNA nucleotides to it to construct the new DNAstrands. The RNA nucleotides in the primers are then replacedby DNA nucleotides.
How does a Tata box helps position rna polymerase. In a eukaryotic cell?
The TATA box seems to help position RNA polymerase by marking a point just before the point at which transcription begins.
Base triplet on tRNA recognizing complementary base triplet on mRNA?
The anticodon on tRNA recognizes the codon on mRNA through complementary base pairing. This interaction helps to ensure the correct amino acid is added to the growing polypeptide chain during translation. Aminoacyl-tRNA synthetases play a key role in charging tRNAs with the appropriate amino acid based on the anticodon sequence.
Tybalt recognizes Romeo by what?
Tybalt recognizes Romeo at the ball in the beginnign of the play by his voice. To be precise, he recognizes him as a Montegue for this reason.
How does RNA polymerase know where to start transcribing a gene into mRNA?
The enzyme that synthesizes RNA (RNA polymerase) binds specific DNA sequencesthat typically lie before the gene being transcribed. When everything it needs to start synthesis is properly assembled (any cofactors, etc.), only then can it begin transcribing DNA into RNA.
What country recognizes Spanish and French as their official language?
There is no country that recognizes both Spanish and French as official languages exclusively, but Andorra recognizes Spanish, French, and Catalan as its official languages.
Who recognizes Romeo's voice at the Capulet's feast?
Juliet recognizes Romeo's voice at the Capulet's feast.
