If the sequence of nitrogenous bases in one strand of DNA is GTA-GCA, the sequence of bases on its complementary DNA strand would be CAT-CGT.
What is DNA?
- DNA stands for deoxyribonucleic acid and is a genetic material.
- It long chain of polynucleotide.
- Each nucleotide consists of: deoxyribose sugar (carbon-containing compound), phosphate group and nitrogenous bases (nitrogen-containing compound).
- Nitrogenous bases is of two types: Purines (consisting Adenine and Guanine) and Pyrimidine (consisting Cytosine and Thymine).
- Adenine pairs with Thymine by forming two hydrogen bonds whereas Guanine pairs with Cytosine by forming three hydrogen bonds.
What is complementary DNA?
- "It is a copy of a region of a strand of DNA."
- Suppose, if the original DNA strand have sequence CCTA then its complementary strand would by GGAT.
The DNA strand have sequence GTA-GCA so its complementary strand would be CAT-CGT.
Hence, the answer is: CAT-CGT.
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