Answer:
While doing medical research on the human subject, following limitations are unavoidable:
a). Privacy: The privacy of the subject involved in the research should be maintained.
b). the subject must be allowed to the minimal exposure to risks and it must be tested on animals first to avoid deaths.
c). The risk associated with the physiological and physical well being of the subject must be considered.
d). The subject must be well instructed about all the risk and procedure involved in the research.
The process by which living things produce more organisms like themselves is the reproduction. There are two types of reproduction namely; asexual reproduction where only one parent is involved, and sexual reproduction that needs two parents, such that the cells of the two parents (egg and sperm) join, resulting to a unique offspring since they have characteristics from each parent are passed down/combined.
Both of the parents are heterozygous