CONGENITAL ANOMALIES AND DEVELOPMENTAL GENETICS 🎗
“It's not the number of genes but the control regions that matter.” - Prof. (Emeritus) Lewis Wolpert 🧬 Congenital anomalies are structural or functional abnormalities arising during embryonic or fetal development. They may be detected prenatally, at birth, or later in life. Their causes include chromosomal & single-gene abnormalities, copy-number & regulatory variants, environmental exposures, & interactions between genetic & environmental factors. 🔹 Developmental genetics examines how genes & regulatory networks control embryonic growth & differentiation. Precisely timed processes (including cell proliferation, migration, differentiation, patterning, & organogenesis) depend on pathways such as HOX, PAX, SHH, WNT, & FGF. Importantly, developmental biology is not determined by coding genes alone: enhancers & other regulatory elements control where, when, & how strongly genes are expressed. Disruption of these regulatory networks ...