A biologist collected seeds from 10 different plants, keeping all seeds under optimal conditionsof storage. Within a week after collection the seeds were germinated under laboratory conditions.Each set of seeds was placed onto moist filter paper which was remoistened as necessary andsubjected to room temperature of 23˚C. Half the seeds of each group received 24 hours of light, theother half were kept in darkness. Within variable periods of time the seeds of certain plants kept inthe light germinated. The seeds of other plants kept in the dark germinated. Some sets of seedsgerminated under both light regimes. One set of seeds did not germinate under either lightcondition. What might be a LOGICAL hypothesis, consistent with the data, for the lack ofgermination of the one set of seeds?A. The seeds required 12 hours of light and 12 hours of darkness in order to germinate.B. All the seeds of that group were dead.C. The seeds required an elevated temperature in order to germinate.D. The seeds required vernalization in order to germinate.E. None of the above is logical.
Question
A biologist collected seeds from 10 different plants, keeping all seeds under optimal conditionsof storage. Within a week after collection the seeds were germinated under laboratory conditions.Each set of seeds was placed onto moist filter paper which was remoistened as necessary andsubjected to room temperature of 23˚C. Half the seeds of each group received 24 hours of light, theother half were kept in darkness. Within variable periods of time the seeds of certain plants kept inthe light germinated. The seeds of other plants kept in the dark germinated. Some sets of seedsgerminated under both light regimes. One set of seeds did not germinate under either lightcondition. What might be a LOGICAL hypothesis, consistent with the data, for the lack ofgermination of the one set of seeds?A. The seeds required 12 hours of light and 12 hours of darkness in order to germinate.B. All the seeds of that group were dead.C. The seeds required an elevated temperature in order to germinate.D. The seeds required vernalization in order to germinate.E. None of the above is logical.
Solution
Based on the information provided, a logical hypothesis for the lack of germination of one set of seeds could be any of the options A, B, C, or D.
Option A suggests that the seeds might require a specific light-dark cycle to germinate, which is a known requirement for some plant species.
Option B suggests that the seeds might be dead, which is a simple and straightforward explanation for the lack of germination.
Option C suggests that the seeds might require a higher temperature to germinate, which is also a known requirement for some plant species.
Option D suggests that the seeds might require vernalization, a process involving exposure to low temperatures, to germinate. This is a known requirement for some types of seeds, particularly those from plants that grow in cold climates.
Without additional information, it's impossible to definitively say which of these hypotheses is correct. However, all of them are logical based on the data provided.
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