Large-scale genetic changes that marked the evolution of pregnancy in mammals have been identified by an international team of scientists. They found thousands of genes that evolved to be expressed in the uterus in early mammals. Surprisingly, these genes appear to have been recruited from other tissue types by transposons — ancient mobile genetic elements sometimes thought of as genomic parasites. The study sheds light on how organisms evolve new morphological structures and functions.
from Top Health News — ScienceDaily http://bit.ly/1A3wBJt via Naturally Increase Breast Size At Home
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