Biology
Grade-9
Easy
Question
Genes are made of a complex chemical substance called _______.
- DNA
- RNA
- Both of these
- None of these
Hint:
Genes are made up of DNA.
The correct answer is: DNA
- Genes are made up of DNA.
- Some genes act as instructions to make molecules called proteins. However, many genes do not code for proteins.
- In humans, genes vary in size from a few hundred DNA bases to more than 2 million bases
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