Is the coding strand used as the template for transcription

The template strand consists of a sequence of anti-codons which are the nucleotide triplets found in the tRNA s individually. The anti-codon is complementary to codons in the non-template or the coding strand.

The synthesizing mRNA is temporally attached to the template strand by forming hydrogen bonds with the complementary nucleotides in the template strand. RNA polymerase adds uracil as the complementary nucleotide to the mRNA strand for adenine in the template strand instead of thymine. The template strand in the transcription is shown in figure 1. The DNA strand which serves as the non-template strand during transcription is referred to as the coding strand. Hence, coding strand is incapable of serving as the template during transcription.

The coding strand contains codons, which are the nucleotide triplets which specify a unique amino acid in the polypeptide chain. These codons collectively make the genetic code, which is a universal feature in almost all the living forms on the earth. Coding strand during the transcription is shown in figure 2. Figure 2: Coding Strand in the Transcription. The coding strand contains the same nucleotide sequence of the mRNA primary transcript.

Since the coding strand contains similar sequences to the mRNA, the unique sequences in the mRNA-like start codon, stop codon and the open reading frame can be found in the coding sequence.

The template strand runs in a 3' to 5' direction. Furthermore, does it matter which DNA strand is transcribed? Both the strands of a DNA can get transcribed. It depends on where the genes to form the proteins required are present. And there are genes on both the strands. One strand of DNA holds the information that codes for various genes; this strand is often called the template strand or antisense strand containing anticodons.

The other, and complementary, strand is called the coding strand or sense strand containing codons. Transcription uses one of the two exposed DNA strands as a template; this strand is called the template strand. The RNA product is complementary to the template strand and is almost identical to the other DNA strand , called the nontemplate or coding strand.

That is, a coding strand is a strand which contains the codons. On the contrary, non -coding strand is the strand which contains the anti-codons. During transcription, the template strand is read in a 3'-to-5' direction.

During transcription, the template strand is read in a 5'-to-3' direction. During transcription, an RNA is transcribed in the 3'-to-5' direction. Coding strand.

When referring to DNA transcription, the coding strand is the DNA strand whose base sequence corresponds to the base sequence of the RNA transcript produced although with thymine replaced by uracil. It is this strand which contains codons, while the non- coding strand contains anticodons. The template strand also contains the anticodons which carries the triplet codes or the triplet nucleotide sequences complementary to anticodon sequence of a t-RNA.

The anticodon thus helps in attaching the specific amino acid to the t-RNA and forms proteins or a polypeptide chain through the assistance of the r-RNA. An enzyme RNA polymerase reads the template strand to synthesis the RNA transcript by recognising the specific sequences. Hence, RNA polymerase is considered as the one which decides the initiation of the transcription and also in the termination of the translation process.

Template and coding strands are the terms generally used to describe the strands which are present in the DNA. During the process of transcription, one of the two strands in the double stranded DNA serves as a template strand. Where as the other strand which is present in the DNA, other than the template strand is known as coding strand. Template strand is responsible for the sequencing amino acid for synthezing the polypeptide chain. The main difference to be considered between the coding and template strand is that the template strand serves as the template for the transcription where the coding strand contains the exact and the same sequence of the nucleotides in mRNA, expect the nucleotide thymine.

The two strands of the molecule of DNA are separated from one another by exposing the nitrogenous bases. Only one of the strands is actively used as a template in the process of transcription. The strand which is used as a template is also known as template strand or sense strand. The complementary strand of the DNA is the one which is not used and is called as the nonsense strand or the antisense strand.

The RNA sequence which is made up of a direct copy of the nitrogenous bases in the template strand. If Guanine base is a part of sequence on the template DNA strand, then the molecule of RNA has a Cytosine base which is added to its sequence at that point.

Table of Contents Secretion Definition The method of moving molecules manufactured within a cell to the space outside of the cell is referred to as secretion. Usually, these secreted substances are called functional proteins. Table of Contents Photoautotroph Definition The organisms that can make their energy in presence of light and carbon dioxide are known as photoautotrophs.

The process of preparing their own food is called photosynthesis. The word. They are hollow tubes made of the proteins alpha and beta tubulins.