CLASS 10
THE MAKING OF A SCIENTIST
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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ORNAMENTAL
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SECRETED HORMONES
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THEY WERE THE BREATHING POINTS
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NONE OF THE ABOVE
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Detailed explanation-1: -Ebright initiated his research on the monarch pupa by studying the purpose of the twelve gold spots on its body. He discovered that these spots produced a hormone which helped in butterfly ’s full development. Later, he proved that the absence of that hormone would make monarch a normal butterfly.
Detailed explanation-2: -These twelve tiny gold spots were believed to be ornamental only. The actual purpose of these tiny gold spots is to produce a hormone necessary for the butterfly’s full development.
Detailed explanation-3: -Expert-Verified Answer The second option which is ‘b) secreted hormones’ is correct as it can be referred from the text.
Detailed explanation-4: -Answer: This project had a huge impact. First, he discovered a hormone that was necessary for the growth of the pupa. Secondly, he got a chance to work at a famous laboratory.
Detailed explanation-5: -Ans. Ebright grew cells from a monarch’s wing to show that cells could divide and develop into normal butterfly wing scales only if they were fed with the hormones from the gold spots, Later, he identified the chemical structure of the hormone and found how cells can read the blueprints of its DNA.