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In eukaryotic cells, typically only a small portion of the DNA is transcribed into mRNA for each protein-coding gene, usually encompassing the gene's exons and some flanking intronic sequences. Each mRNA molecule represents a specific gene, consisting of about 1-2% of the total DNA in the genome. This transcription process is tightly regulated, allowing cells to produce only the necessary mRNAs for specific functions under varying conditions. Thus, while the entire genome contains the information, only select segments are actively transcribed into mRNA at any given time.
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How much protein is in one mRNA?
The amount of protein produced from one mRNA molecule can vary significantly depending on several factors, including the length of the mRNA and the specific protein being translated. Generally, one mRNA molecule can code for one protein, and the length of the resulting protein is determined by the number of codons in the mRNA, with each codon corresponding to one amino acid. As a rough estimate, a typical mRNA can result in a protein that is composed of tens to hundreds of amino acids, translating to a protein weight of several kilodaltons.
Why do we need transcription?
DNA is transcribed into mRNA so the mRNA can travel out of the nucleus and bind to ribosomes to form proteins through translation. The DNA molecule cannot travel outside of the nucleus because it's too big to fit through the membrane surrounding the nucleus
Why is protein different in prokaryotes and eukaryotes?
In prokaryotes, DNA is stored in the cytoplasm. also prokaryotes have no nucleus In prokaryotes, transcription and translation happen at the same time.
How much DNA unzips to make mRNA?
One mRNA strand is made.
Does a typical gene consists of regulatory sites in a promoter and the nucleotide sequence that is transcribed?
Yes, a typical gene consists of regulatory sites in a promoter region that determine when and how much the gene is transcribed. The nucleotide sequence that is transcribed is called the coding sequence, which contains the instructions for making a specific protein or RNA molecule. All these elements work together to regulate gene expression.
How much protein is in one mRNA?
The amount of protein produced from one mRNA molecule can vary significantly depending on several factors, including the length of the mRNA and the specific protein being translated. Generally, one mRNA molecule can code for one protein, and the length of the resulting protein is determined by the number of codons in the mRNA, with each codon corresponding to one amino acid. As a rough estimate, a typical mRNA can result in a protein that is composed of tens to hundreds of amino acids, translating to a protein weight of several kilodaltons.
Why do we need transcription?
DNA is transcribed into mRNA so the mRNA can travel out of the nucleus and bind to ribosomes to form proteins through translation. The DNA molecule cannot travel outside of the nucleus because it's too big to fit through the membrane surrounding the nucleus
Why is protein different in prokaryotes and eukaryotes?
In prokaryotes, DNA is stored in the cytoplasm. also prokaryotes have no nucleus In prokaryotes, transcription and translation happen at the same time.
CH4 How much atom contained in each molecule?
One molecule has 5 atoms.One carbon and four hydrogens
What does percent composition tell you about a molecule?
Percentage composition= (mass of the element/mass of the molecule)*100 The fraction of the molecule's mass that comes from the element's mass
How much DNA unzips to make mRNA?
One mRNA strand is made.
How much chloride is in sodium chloride?
1 atom in each molecule (60,33417 %)
Which of the following statements best describes the promoter of a protein coding gene?
The promoter of a protein-coding gene is a region of DNA located at the beginning of the gene that initiates transcription by providing a binding site for RNA polymerase. It plays a critical role in controlling gene expression by regulating when and how much of the gene is transcribed into mRNA.
Does a typical gene consists of regulatory sites in a promoter and the nucleotide sequence that is transcribed?
Yes, a typical gene consists of regulatory sites in a promoter region that determine when and how much the gene is transcribed. The nucleotide sequence that is transcribed is called the coding sequence, which contains the instructions for making a specific protein or RNA molecule. All these elements work together to regulate gene expression.
Does DNA control the production of enzymes?
Yes, DNA contains the genetic information that codes for the production of enzymes. This information is transcribed into messenger RNA (mRNA), which is then translated into proteins, including enzymes, through a process called protein synthesis. Enzymes are essential for catalyzing biochemical reactions in the cell.
How much mass does a ch4 molecule have?
Add atomic masses of each atom.So answer is about 16
How much o2 is in hgb?
Each hemoglobin molecule can bind up to four oxygen molecules.
