Final answer:
cDNA synthesis involves the use of (Option A) reverse transcriptase enzyme to create a DNA copy of an RNA molecule. It is an important tool in genetic engineering and gene cloning.
Step-by-step explanation:
The process of synthesizing cDNA (complementary DNA) involves the use of reverse transcriptase enzyme. Reverse transcriptase is an enzyme that transcribes RNA into DNA. It recognizes both DNA and RNA templates and has DNA polymerizing activity. The enzyme catalyzes the synthesis of the second cDNA strand, resulting in a double-stranded cDNA molecule.
The synthesis of cDNA is an important tool in genetic engineering and gene cloning. It allows researchers to create a DNA copy of an RNA molecule, enabling further analysis and manipulation of genes. The synthesized cDNA can be used in various applications such as gene expression studies, diagnosis of molecular diseases, and treatment of genetic disorders.