Biological Classification Question 76
76. The vector for sleeping sickness is [1989]
(a) House fly
(b) Tse-Tse fly
(c) Sand fly
(d) Fruit fly
Show Answer
Answer : b
Hints & Solutions
(b) Vector for sleeping sickness is Tse-Tse fly (Glossina palpalis). The parasite Trypanosoma is transmitted through the bite of this fly. Tse-tse have been extensively studied because they are biological vectors of the African trypanosomiasis, deadly disease which includes sleeping sickness in people and nagana in cattle. Tse-tse have existed in the modern morphological form for at least 34 million years since fossil tse-tse have been recovered from the Florissant Fossil Beds in Colorado.
