In corn, purple kernels (P) are dominant to yellow kernels (p). You have a plant with an unknown genotype that has a phenotype of purple kernels. You perform a testcross and find that all of the offspring are purple.
The layout of the solar system, including the Oort Cloud, on a logarithmic scale. Credit: NASA. In the furthest reaches of the Solar System is the Oort Cloud; a theorized cloud of icy objects that could orbit the Sun to a distance of 100,000 astronomical units, or 1.87 light-years away.
The stellar disk of the Milky Way Galaxy is approximately 100,000 light-years (9Ã1017 km) (6Ã1017 mi) in diameter, and is considered to be, on average, about 1,000 light-years (9Ã1015 km) thick. It is estimated to contain at least 200 billion stars and possibly up to 400 billion. 1 person found this useful.