What is a gene?
A section of DNA for one protein.
A recipe book
A cell needs many different proteins. Its DNA holds the information for making them.
Which part of the DNA gives the information for one protein?
What this lesson covers
The idea
A gene is a section of DNA that provides information for making one protein.
A recipe book
A cell needs many different proteins. Its DNA holds the information for making them.
Which part of the DNA gives the information for one protein?
- A section of the DNA
- The whole DNA at once
- A single protein
Find a gene
Press Next step.
A gene
DNA is long. A small section of it holds the information for one protein. That section is the gene for that protein.
A gene is a section of DNA that provides information for making one protein.
Notes
A gene is a section of DNA that gives the information for making one protein.
Check yourself
A gene is…
The information in one gene is for making how many proteins?
Answer: 1
A section of DNA that provides information for one protein is called the gene for that protein.
What is the information source for making proteins in the cell?
- a section of DNA that provides information for making one protein — correct. Yes!
- a protein made by the cell. A protein is made using the information in a gene. The gene itself is a section of DNA.
- the whole DNA of the cell. The whole DNA holds many sections. A gene is only the section for one protein.
- The proteins themselves. Proteins are made using information from DNA. They are not the source of the information.
- Cellular DNA — correct. Yes!
- A plant hormone. A plant hormone can trigger growth, but cellular DNA is the information source for making proteins.