This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
Okazaki fragments are formed during the synthesis of: 
Select and explain. 
A. ds DNA, B. ss DNA, C. m RNA, D. t RNA
A: ds DNA
Answer: A: ds DNA 
Explanation: Okazaki fragments are sho segment of DNA synthesised on lagging strand, during the process of replication of a double stranded DNA. Ref: Biochemistry By Mary K. Campbell, Shawn O. Farrell, 7th Edition, Pages 258, 275; Harper Textbook of Biochemistry, 27th Edition, Pages 335-37; Lewin's Genes X By Benjamin Lewin, Page 341; Lippincott's Biochemistry, 4th Edition, Page 406; Microbial Genetics, Page 154