QUESTION 3 How did the researcher Henry Bernard Davist Kettlewell test his hypot
ID: 281145 • Letter: Q
Question
QUESTION 3
How did the researcher Henry Bernard Davist Kettlewell test his hypothesis concerning the adaptive value of dark or light coloration in moths (in England)? (multiple choice - only one correct answer).
He timed undergraduates using tweezers as they plucked differently colored moths off of trees.
He tested how many light or dark colored moths were plucked from trees by birds in different locations.
He performed a genetic test-cross with dark and light moths.
He created a computer simulation of moth color and predation by artificial birds.
He timed undergraduates using tweezers as they plucked differently colored moths off of trees.
He tested how many light or dark colored moths were plucked from trees by birds in different locations.
He performed a genetic test-cross with dark and light moths.
He created a computer simulation of moth color and predation by artificial birds.
Explanation / Answer
Ans : He tested how many light or dark colored moths were plucked from trees by birds in differenr locations.
The basis of kettlewell's study was to determine how many moths light or dark are picked by the birds from the tree trunks.
According to him , the contrasting colors were necessary , such as a light colour moth had more likeliness of getting picked up from a dark tree trunk than that from the trunk of the same color.
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