How does DNA code for proteins?

Answer 1

This is probably one of the most complex processes and rather difficult to explain in a short space.

An overview:
DNA =>RNA=>Protein
These are the steps:
Replication
Transcription
Translation

The DNA remains in the cell nucleus but the production of the protein occurs in the cytoplasm. This requires the help of mRNA. DNA has the code for a protein which mRNA has to copy and then take that copy out of the nucleus to an other organelle called a ribosome. There the copy is translated into the protein.

There are three types of RNA: mRNA, tRNA and rRNA.(ribosomal).

In translation, messenger RNA (mRNA) produced by transcription is decoded by a ribosome complex to produce a specific amino acid chain, or polypeptide, that will later fold into an active protein using tRNA.

The ribonucleotides are "read" by translational machinery (the ribosome) in a sequence of nucleotide triplets called codons. Each of those triplets codes for a specific amino acid. These amino acids are "added" one by one to form a protein.

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Answer 2

Vivian Aronson

Protein synthesis is the process by which DNA codes for proteins. It involves two main stages: transcription and translation. 1. Transcription: The enzyme RNA polymerase binds to a specific region of DNA called a gene in the nucleus. RNA polymerase unwinds the DNA double helix and uses one strand as a template to synthesize a complementary strand of messenger RNA (mRNA), which carries the genetic information from the DNA to the ribosomes in the cytoplasm. 2. Translation: The mRNA attaches to a ribosome in the cytoplasm, where the process of translation takes place. Transfer RNA (tRNA) molecules, each carrying a specific amino acid, bind to the mRNA by complementary base pairing between the mRNA codon and the tRNA anticodon. As the ribosome moves along the mRNA, it catalyzes the form of

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.