Question

Choose the correct answers from the alternatives given :
Which enzyme catalyzes the synthesis of a new strand for a DNA molecule by linking nucleotides to the developing strand?

• A. DNA ligase
• B. DNA polymerase
• C. Single-strand binding proteins
• D. Topoisomerase

Answer 1

The correct option is B DNA polymerase

DNA polymerase is an enzyme that synthesis DNA molecules from deoxyribonucleotides which are the building blocks of DNA. Each nucleotide contains a sugar molecule (deoxyribose sugar), a phosphate molecule, and any one of the nucleotides (adenine, guanine, cytosine and thymine). They basically help in DNA replication by working in pairs to form a new DNA molecule.

So, the correct option is 'DNA polymerase'.