Final answer:
The missing hormone(s) in a hypophysectimized rat can lead to symptoms such as the lack of development of secondary sex characteristics, atrophy of sex organs, and dwarfism.
Step-by-step explanation:
As a result of the missing hormone(s) in the hypophysectimized rat, there would be several expected symptoms. One example is the lack of development of secondary sex characteristics due to the absence of male hormones. The rat may also experience atrophy of sex organs in later life. In addition, hyposecretion of growth hormone (GH) can result in dwarfism, characterized by short height but fully developed mental and sexual ability.