| Unit 3: Biology | ||||
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10. Consider the seedlings that were kept in darkened dishes. a) How do the percentages of albino and green seedlings compare with the percentages of albino and green seedlings that were continuously exposed to light? b) What is the environmental factor that is varied in this activity? c) Is this difference in percentages of seedlings kept in the light and seedlings kept in the dark due to inherited or environmental factors? d) What do you think is causing the differences in the appearance of the seedlings that were in darkened dishes? 11. Consider the seedlings that were first in darkened dishes and then exposed to light. a) How do the percentages of green and albino seedlings compare with the percentages of green and albino seedlings in the other situations? b) What happened to the appearance of many of the seedlings after the cover was removed? c) Does this support your answer to Step 10 (d)? d) What are the effects of light upon seedlings that carry a certain hereditary characteristic? |
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