Differential screening
process in development of a multicellular organism by which cells become specialised for particular functions. Requires that there is selective expression of portions of the genome, the fully differentiated state may be preceded by a stage in which the cell is already programmed for differentiation but is not yet expressing the characteristic phenotype determination.
There are more species of insects than any other species combined. This surely illustrates that insects have the selecti..
Humans are diploid creatures. This means that for every chromosome in the body, there is another one to match it. Howeve..
The body is comprised of different elements with hydrogen, oxygen, carbon, and nitrogen as the major four. This tutorial..
There are many environmental factors that arise due to the usage of water in one way or another and for every action tha..
Some of the body movements can be controlled at will, others cannot. The body has a motor program, which is the pattern ..
Hormones are produced in the endocrine glands of animals. The pituitary gland and hypothalamus are the most impor..