Table of Contents
- 1 What determines which DNA strand is the template strand used in transcription?
- 2 What determines which base is to be added to an RNA strand during transcription?
- 3 How does the DNA template strand differ from the DNA coding strand quizlet?
- 4 How does RNA polymerase know where to start transcribing a gene into mRNA quizlet?
- 5 How do you know if its a coding or template strand?
- 6 What is a coding strand in RNA molecule?
- 7 How is mRNA organized on the DNA template strand?
- 8 What is the complementary strand to the sense strand?
What determines which DNA strand is the template strand used in transcription?
promoter
Since the promoter is located prior to the transcribed region and the DNA strand that serves as the template for transcription is always read in a 3′->5′ direction to make an mRNA transcript in a 5′->3′ direction, it is the location of the promoter for a gene which determines which DNA strand (top or the bottom) serves …
What determines which base is to be added to an RNA strand during transcription?
In RNA, the base uracil (U) replaces the DNA base thymine (T). Thus the base-pairing rules in transcription are A→U, T→A, C→G, and G→C, where the first base is the coding base in the template strand of the DNA and the second base is the base that is added to the growing mRNA strand.
Is the coding strand transcribed?
2.3 RNA Synthesis is Gene Transcription During transcription, the coding strand of DNA serves as a template for synthesis of a complementary RNA molecule. The sequence of the RNA molecule is determined by complementary-base pairing so that the RNA is a complementary transcript (copy) of the coding strand of DNA.
How does the DNA template strand differ from the DNA coding strand quizlet?
What is the difference between the “coding strand” of DNA and the “template strand” of DNA? The “coding strand” is complimentary to the template strand and the same as the mRNA strand that is being synthesized with the Ts replaced with Us.
How does RNA polymerase know where to start transcribing a gene into mRNA quizlet?
How does RNA polymerase know where to start transcribing a gene into mRNA? RNA polymerase starts when the enzyme attaches to a certain nucleotide sequence called a promoter at the beginning of a gene. Transfer RNA acts to translate the message to RNA polymerase.
What happens to the coding strand during transcription?
During transcription, the coding strand of DNA serves as a template for synthesis of a complementary RNA molecule. The sequence of the RNA molecule is determined by complementary-base pairing so that the RNA is a complementary transcript (copy) of the coding strand of DNA.
How do you know if its a coding or template strand?
The main difference between template and coding strand is that template strand only serves as the template for transcription whereas coding strand contains the exact same sequence of nucleotides in the mRNA except thymine.
What is a coding strand in RNA molecule?
When referring to DNA transcription, the coding strand (or informational strand) is the DNA strand whose base sequence is identical to the base sequence of the RNA transcript produced (although with thymine replaced by uracil).
Which strand of DNA does mRNA match during transcription?
This means that the mRNA will match th During transcription, mRNA is produced from the antisense strand of DNA. This means that the mRNA will match the Sense strand of DNA, substituting uracil for thymine. Log in for more information.
How is mRNA organized on the DNA template strand?
The mRNA formed will be complimentary to the DNA strand. During transcription RNA polymerase begins moving down the DNA template strand in the 5′ to 3′ direction, when it does it strings together complementary nucleotides. Because of complementary base- pairing, this action creates a new strand of mRNA that is organized in the 3′ to 5′ direction.
What is the complementary strand to the sense strand?
The complementary strand to the sense strand in the DNA double-stranded is referred to as the antisense strand, which runs from 3’ direction to 5’ direction. The antisense strand is considered as in the negative sense. It serves as the template for the mRNA synthesis, transcription.
How are complementary nucleotides attached to the template strand?
During the transcription, RNA polymerase, which is the enzyme involving in the transcription add complementary nucleotides to the template strand. The synthesizing mRNA is temporarily attached to the template strand by the formation of hydrogen bonds with their complementary bases in the template strand.