One of the newest applications of cell technology is called cybrid embryos. this process involves replacing the nuclear material of an animal cell with human nuclear material. how might this process affect public policies about research by using stem cells?

In this type of research, human nuclear materials are used therefore it shall apply the same policies and concerns about the use of human embryonic stem cells (hESC). 

Many scientists are frustrated because their work has been at a standstill due to laws about stem cell research. Some of these laws ban the use of such application like the Dickey Amendment.

Nimbostratus is the correct answer.
explanation: nimbostratus clouds are the type of clouds that are mostly likely present on gray, rainy day. these clouds produce continuous rain, snow and there is no thundering or lightening either.