Answer:
Mary Mallon (September 23, 1869 – November 11, 1938), also known as Typhoid Mary, was an Irish-born cook believed to have infected 53 people with typhoid fever, three of whom died, and the first person in the United States identified as an asymptomatic carrier of the disease pathogen, Salmonella typhi.
Flex to the moon and back
Answer:
Answer is explained below.
Explanation:
A. The observed single stranded regions are found in the mRNA.
B. The loops represent introns (Non-coding portions of the mRNAin primary transcript ). The intron sequences are removed to form a mature mRNA by splicing.
C. If the scientist use RNA and DNA from bacteria, loops cannot be seen. Because introns are produced in only eukaryotes but not in prokaryotes.
