Two coherent sources, A and B, emit light waves in a medium. The light waves superpose to produce an interference pattern. Which
of these is true of sources A and B? A) The two broad sources of light were far apart from each other. B) The waves emitted by the two sources have different wavelengths. Eliminate C) The waves emitted by the two sources have constant phase difference. D) The two sources of light had to be obtained from two different sources.
The answer is D- An ovum is a sex cell. If it contains a mutation, this mutation may be passed from parent to offspring. Only mutations on gametes may be passed from parent to child. This is because these cells use during sexual reproduction.
The differences in the structure of the muscle and the nerve cells is due to the gene expression or gene expressed in the cell and the gene silenced to achieve the desired organisation of cells.
