After working on your butterfly project in Michigan for about a month, you need
ID: 265580 • Letter: A
Question
After working on your butterfly project in Michigan for about a month, you need to complete your work in Texas and you pack up your lab and butterflies and move to Texas.
You immediately notice that the climate is much different. The weather is warmer, there is more direct sunlight and the air is more humid. You are enjoying the weather and you even move your lab outside. After about a week of working in Texas, you notice that there is something going wrong with your project. The hundreds of butterflies that have the alleles “BB” are “Bb” are no longer showing the bright colors that they showed in Michigan. Instead, the colors are quite dull. The yellow butterflies, however, are still bright yellow.
1. In 1 or 2 sentences, make a clear CLAIM about what has happened to the bright blue and bright green coloration.
2. Briefly explain how you would design an experiment that would test your CLAIM explaining the lack of bright colors in some of the butterflies after the relocation of your lab? You do not need to go into a lot of detail about your experiment, just the major points of the experimental design
3. Draw a graph that illustrates results from your experiment that would provide evidence for your claim in Q12. Include all 3 colors of butterflies on your graph. Make sure that you include a figure legend (caption) below your figure (not just a “key”)
Explanation / Answer
1. The color of butterfly is two types. One is structural colour and onother coloration depends on pigment. Structural colour is observed in case of blue, purple etc butterfly, here the colour depends on angle of wings and the reflection of sunlight. Whereas yellow colour is pigmented colour. So here for changing the location the blue colour of the butterfly change but not the colour of yellow butterfly.
2. An experiment can be designed to prove this claim. Take twenty butterflies and remain them to a place in the lab where they get the direct sunlight whereas take another twenty butterflies and put them another place in the lab where they do not have the direct sunlight. Other conditions are the same in both cases. The experiment could conduct for three days. And the changing in color is recorded in each day. With these recorded data we can easily conclude the phenomenon.