Question

cDNA is

• A. Circular DNA
  
• B. Coiled DNA
  
• C. Cytoplasmic DNA
  
• D. Complementary DNA
  

Answer 1

The correct option is D Complementary DNA


cDNA
cDNA is complementary DNA formed from RNA catalysed by the enzyme, reverse transcriptase. This process is called reverse transcription. cDNA is different from DNA as it does not contain introns.

Circular DNA
Circular DNA in the form of DNA present in the form of a circle without having any free ends. It is present in bacterial cells.

Coiled DNA
Coiled DNA is the highly packaged form of DNA.

Cytoplasmic DNA
Cytoplasmic DNA is the extrachromosomal DNA present outside the nucleus. It is present in cytoplasm such as a plasmid or organelles such as mitochondria or chloroplast.

Final answer:
d. Complementary DNA