What is the structure of a codon?.

1 answer:

7 0

Codons are units of genomic information made up of three nucleotides (trinucleotides) in DNA or RNA that code for a specific amino acid or indicate the end of protein synthesis (stop signals).

On a strand of messenger RNA (mRNA), the start codon serves as the signal to begin translation. Keep in mind that translation is the process by which strings of amino acids are created when anticodons on the transfer RNA (tRNA) molecule bind to their complementary codons on the messenger RNA (mRNA).
This is how our bodies produce proteins, which are necessary for a variety of bodily processes. When a ribosome hooks onto an mRNA strand and attaches to the 5' end of it, translation occurs after transcription results in the synthesis of RNA.
Translation starts when the ribosome moves across the mRNA strand and identifies a start codon.
Every codon is a group of three nucleotides that together code for a particular amino acid and are each represented by a letter in the alphabet.
Therefore, when several codons are combined, a string of amino acids is produced that eventually turns into a protein. Therefore, the start codon instructs the ribosome where to start the translation process on the mRNA molecule.
Usually, it is AUG, which stands for methionine, an amino acid. The codons after it are read continuously until translation is complete after it has been detected and the methionine has been transported over by tRNA.
It should be noted that AUG no longer codes for a start codon when it is located in the middle of a strand that is already being translated.

To know more about codon check the below link:

brainly.com/question/7643068

#SPJ4

You might be interested in

Identify two life functions involved in meeting the energy demands of a cell or an organism

Alexus [3.1K]

Answer:

Respiration and photosynthesis.

Explanation:

Respiration provides the cell with oxygen while photosynthesis provides it with carbon dioxide. Both functions release what is needed for the other. Therefore, these functions interact.

7 0

3 years ago

Can enzymes be reused

Masja [62]

If denaturation occurs (extreme temperature change or pH changes), the enzyme will not be reusable! The structure of the enzymes are not changed. As a result of this, enzymes will be used again and again to bind onto another substrate molecule and catalyze the reaction once again.

8 0

4 years ago

List the four levels of organization in the human body from smallest to largest. Give an example of each level.

Elanso [62]

It starts with the cells, followed by the tissues, then the organs, and ending with the organ .

6 0

3 years ago

During glycolysis, what is the source of the chemical energy that is captured in ATP? A. the chemical bonds in pyruvic acid B. t

seropon [69]

During glycolysis, the source of the chemical energy that is captured in ATP:

B. the chemical bonds in glucose

Explanation:

Glycolysis is also known as Embden-meyerhof pathway.
It is an oxidative process in which one mole of glucose is partially oxidized into two moles of pyruvate.
Glycolysis occurs in the cytosol of the cell in both aerobic and anaerobic conditions.
The breakdown of six-carbon glucose into two molecules the three-carbon pyruvate occurs in ten steps.
The first five steps of this pathway constitute the preparatory phase.This phase consumes energy during the phosphorylation of glucose.
The preparatory phase produces two molecules of glyceraldehyde 3-phosphate (G3P).
The two molecules of G3P are then converted to pyruvate in the next five steps that constitute the payoff phase.

The energy gain of glycolysis comes in this payoff phase.
The oxidation of G3P yields a high energy molegule 1,3 -bisphosphoglycerate .
The high energy phosphate on carbon 1 of this molecule is donated to ADP and ATP is produced.
This synthesis of ATP is called substrate level phosphorylation because ADP phosphorylation is coupled with exergonic breakdown of a high-energy bond.

5 0

3 years ago

According to the central dogma, what is the intermediate molecule involved in the flow of information in a cell that should go i

Tanya [424]

The correct answer is RNA.

The central dogma explains the flow of genetic information within a biological system. It is a simplified explanation for a gene expression. DNA is copied into mRNA during the process of transcription and the proteins are synthesized using the information in mRNA during the translation.

6 0

3 years ago