What do you mean by the term the translation, transcription,lac operon in terms DNA/RNA replication? explain?

Question

What do you mean by the term the translation, transcription,lac operon in terms DNA/RNA replication? explain?

Answer 1

Transcription is the process by which an mRNA template, encoding the sequence of the protein in the form of a trinucleotide code, is transcribed from the genome to provide a template for translation. Transcription copies the template from one strand of the DNA double helix, called the template strand.

Transcription can be divided into 3 stages: Initiation, Elongation and Termination, each regulated by a large number of proteins such as transcription factors and coactivators that ensure the correct gene is transcribed in response to appropriate signals.

The synthesis of proteins is known as translation. Translation occurs in the cytoplasm where the ribosomes are located. Ribosomes are made of a small and large subunit which surrounds the mRNA. In translation, messenger RNA (mRNA) is decoded to produce a specific polypeptide according to the rules specified by the genetic code.

The Lac operon is an operon required for the transport and metabolism of lactose in Escherichia coli and some other enteric bacteria. It consists of three adjacent structural genes, a promoter, a terminator, and an operator

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Answer 2

DNA/RNA replication have nothing to do with these terms, they relate to protein synthesis and control of protein synthesis/gene expression.

Answer 3

translation:synthesis of proteins

transcription:synthesis of mRNA

lac operan:regulator

Answer 4

Translation: Is the reading of DNA strands to produce an RNA messenger.

Transcription: The reading of messenger RNA by ribosomes to produce a protein.

Lac Operon: The operon in some species of bacteria, notably E. Coli., that when turned on allows the bacteria to utilise Lactose as a food source.