Answer:
Metaphase
Chromosomes line up at the metaphase plate, under tension from the mitotic spindle
C) matter is changed into various forms but the total quantity remains unchanged.
It is known as the Boulder dam and it is a concrete arch-gravity dam
Proto-oncogenes signal cells to grow and differentiate. However, they can become oncogenes due to mutations which result in the uncontrollable division of the cells, i.e. cancer. One way is a point mutation in a proto-oncogene. The consequence is changed protein product. Another way is gene amplification of DNA segment containing a proto-oncogene. As the result, the encoded protein is overexpressed. The third way is translocation. As the result of translocation, proto-oncogene can be controlled by the different promoter and expressed inappropriately.
