Psychology Glossary. Genotype. The total set of genes contained within an organisms cells. Organisms contain some genes that are expressed (you can consider the expressed to mean that the gene is active or being used) and some that are not. Regardless, all the genes an organism has are considered the genotype.
Mars' closest approach to the Earth is called opposition, and occurs roughly every 780 days.
When Venus is in the middle of the Sun and Earth, it is at its closest point to Earth. During this period, Venus would be the closest planet to Earth.However, there are times when Mars is actually the closest planet.sking which planet is the closest to Earth is actually something of a trick question â the closest planet to Earth can change depending on the day, month, or even year.