Biological Classification Question 43
43. The hereditary material present in the bacterium Escherichia coli is
(a) single stranded DNA
(b) deoxyribose sugar
(c) double stranded DNA
(d) single stranded RNA
Show Answer
Answer : c
Hints & Solutions
(c) In (E.coli $)$ double stranded DNA is present. E. coli is a Gram-negative, facultative anaerobic, rod-shaped, coliform bacterium of the genus Escherichia that is commonly found in the lower intestine of warm-blooded organisms. Most types of $E$. coli are harmless and even help keep your digestive tract healthy. But some strains can cause diarrhea if you eat contaminated food or drink fouled water.
