Final answer:
The Selig Hecht Experiment is a study on vision and light sensitivity and does not relate to photosynthesis, DNA sequencing, or genetic mutation investigations. In plant growth and genetic experiments, scientists perform genetic crosses and study phenotypic traits to understand inheritance patterns.
Step-by-step explanation:
The Selig Hecht Experiment refers to a vision and light sensitivity study. Selig Hecht was a physiologist who, along with his colleagues, conducted research on the quantal nature of light perception and provided insight into the sensitivity of human vision to light, particularly at low intensities. This study does not pertain to options such as photosynthesis research, DNA sequencing, or genetic mutation investigation. As for the various experiments mentioned related to plant growth and genetics, these would typically involve experiments much like the ones conducted by Gregor Mendel on pea plants to understand inheritance patterns and would also involve analyzing phenotypic traits. Utilizing organisms like Wisconsin Fast Plants or fruit flies, scientists perform genetic crosses and use tools like Punnett squares or probability to predict and compare expected and observed phenotypic ratios, examining Mendelian and non-Mendelian inheritance patterns.