Final answer:
The best question to help a scientist genetically modify a flower to glow in the dark is 'Is there a gene that controls the trait for glowing in the dark?' This approach directly addresses the genetic nature of the trait and utilizes modern DNA analysis tools. Option b is the correct answer.
Step-by-step explanation:
Genetically Creating a Flower That Glows in the Dark
In the pursuit of creating a flower that glows in the dark, which is a directed genetic modification, it is essential to understand the genetic basis for such a phenotype. Of the options provided, asking 'Is there a gene that controls the trait for glowing in the dark?' (B) will most directly address the goal of genetically altering a flower to possess this unique characteristic. This question implies the need for understanding the genetics behind bioluminescence.
Most complex phenotypes, including luminescence, are not due to a single gene but rather due to the interaction of multiple genes. However, identifying a key gene or set of genes responsible for a trait is a critical step in genetic engineering. The rapid analysis of DNA through advanced technologies like CRISPR and genome sequencing enables scientists to quickly identify genes associated with specific traits. These tools can potentially be used to integrate a glowing trait into a flower's genome. Phenotypic traits in plants, such as flower color, shape, or other features that attract pollinators, are often chosen for investigation because they confer evolutionary advantages or are of commercial interest.
Although manipulating the environment can sometimes produce phenotypic changes, such as coating a flower with a luminescent paint (C) or adding minerals to soil (D), these changes are not genetic and do not lead to a heritable trait. Increasing the amount of pollen produced (A) is unrelated to making a flower glow. Therefore, understanding the genetics of bioluminescence is the most promising avenue for creating a genetically modified glowing flower.
In conclusion, the correct option answer to the question is B) Is there a gene that controls the trait for glowing in the dark?