Explanation:
crossing over is a process that happens between human organs chromosome in order to increase general diversity. during crossing over part of one chromosome is exchange with another. the result is a hybrid chromosome with a unique pattern of genetic material. gametes gain the ability to be genetically different from their neighbouring gametes after crossing over occurs. this a loss for genetic diversity which will help cell participate in survival of the fittest and the evolution.
Answer:
In the electromagnetic spectrum, the visible spectrum is the part, which is perceptible to the human eye. The electromagnetic spectrum in this array of wavelengths is known as simply light or the visible light. A general human eye will react towards the wavelengths in the range between 380 to 740 nm. A human eye sees the sky as blue that comes in the wavelength 490 nm because of the scattering of the visible light by the particles in the atmosphere. This concludes that 490 nm is the sole wavelength, which is reaching the eye.