genetically, corpus luteum, phylogenetically, constitutively, morphologically, xenopus laevis, suppressor gene, monozygotic twin, fertilized ovum, histologically, maternally, immunologically, lateral ventricle, leydig cell, rh factor, biochemically, hormonally, anatomically, embryonic tissue, pelvic girdle, umbilical vein, homologous chromosomes, choroid plexus, prairie vole, biologically, physiologically, autosomal recessive disease, genetic abnormality, metastatic tumor, evolutionarily, sertoli cell, serum albumin, asexually, assortative mating, meadow vole, metabolically, endogenously, amniotic cavity, pyloric stenosis, extrinsically, anterior pituitary, genetic mutation, mutant gene, hydroxyl radical, chromosomal anomaly, genetic defect, adrenal cortex, asexual reproduction, follicle stimulating hormone, cerebral hemisphere, estrous cycle, startle reflex, striated muscle, autosomal dominant disorder, neuromuscular junction, sensory neuron, rh incompatibility, inferiorly, alpha fetoprotein, purkinje cell, pharmacologically, zona pellucida, seminal vesicle, nematode worm, taxonomically, congenital abnormality, embryonal carcinoma, photochemically, transiently, epithelial cell, placental mammal, dermoid cyst, endometrial carcinoma, heterogametic, redeyed, triploid, adolescent, adrenalectomized, adult, africanamerican, aged, agonadal, androgynous, anorexic, apterous, bisexual, bom, brachypterous, castrated, caucasian, caucasoid, chested