The coding strand, also known as the sense strand, is the DNA strand that has the same sequence as the mRNA that is transcribed from it. This means that the coding strand has the same sequence as the resulting protein. On the other hand, the non-coding strand, also known as the template strand, is the DNA strand that is used as a template for the synthesis of mRNA during transcription. It has a complementary sequence to the mRNA and does not directly code for the protein. **

This is a non-coding strand because it serves as a template for the synthesis of mRNA during transcription. It does not directly code for a protein, but instead provides the complementary sequence of nucleotides that will be used to create the mRNA molecule. The non-coding strand is also known as the antisense strand, as it is complementary to the coding strand, which is the sense strand that carries the genetic information for protein synthesis. **

Non-coding DNA regions are not under the same selective pressure as coding DNA, which means mutations in non-coding regions are more likely to be tolerated without affecting the organism's survival or reproduction. This leads to a higher accumulation of genetic variation in non-coding regions over time. In contrast, mutations in coding regions can have a direct impact on the organism's phenotype and are more likely to be eliminated by natural selection, resulting in lower polymorphism in coding DNA. **

The non-coding strand of DNA is used as a template to create the coding strand during the process of transcription. An enzyme called RNA polymerase binds to the non-coding strand and synthesizes a complementary RNA molecule. This RNA molecule is then processed and modified to become messenger RNA (mRNA), which serves as the template for protein synthesis. The mRNA is read by ribosomes to assemble the corresponding amino acids into a protein. **

Non-coding DNA, such as introns and intergenic regions, is not under the same selective pressure as coding DNA, which must maintain the amino acid sequence of proteins. This lack of selective pressure allows for more genetic variation to accumulate in non-coding regions over time. Additionally, non-coding DNA can tolerate mutations more easily without affecting the organism's phenotype, leading to a higher level of polymorphism. These polymorphisms in non-coding DNA can still have functional implications, such as regulating gene expression or affecting chromatin structure. **

In the genetic code, the non-coding strand is the template strand that is used as a template for the synthesis of mRNA during transcription. It is also known as the antisense strand. The coding strand, on the other hand, is the complementary strand to the non-coding strand and is not directly involved in the synthesis of mRNA. It is also known as the sense strand. The non-coding strand is used to determine the sequence of the mRNA, while the coding strand has the same sequence as the mRNA, except it has thymine instead of uracil. **

During transcription, the non-coding strand of DNA acts as a template for the synthesis of the mRNA molecule. The enzyme RNA polymerase binds to the non-coding strand and synthesizes a complementary mRNA molecule by adding nucleotides according to the base-pairing rules (A-U, G-C). This process results in the production of a single-stranded mRNA molecule that is complementary to the non-coding DNA strand. **

Non-coding DNA is used in genetic fingerprinting because it is highly variable between individuals, making it useful for distinguishing between different people. Non-coding DNA, also known as junk DNA, does not code for proteins and is not involved in the expression of genes, so it is less likely to be under selective pressure and more likely to accumulate mutations over time. This high variability and lack of functional constraints make non-coding DNA ideal for genetic fingerprinting, as it can provide unique genetic profiles for individuals. **