Search Results for: gestation
Lethal mutation
Lethal Mutation Definition Genetic mutations come from changes in the DNA structure or sequencing in an organism. Often... Read More
SENI Biometric Analysis on the extinct Scincidae species: Macroscincus coctei (underlined)
Brian L. Schnirel Leeway Corucia Research Center (LCRC) Courtesy: Polyphemos (2004) Introduction: It has been... Read More
Dichorionic-diamniotic twins
Definition noun Twins with separate chorions and amniotic sacs in utero Supplement Twins may be classified according to the... Read More
Palmar crease
Definition noun, plural: palmar creases A crease or line on the palm Supplement The lines on the palm called palmar creases... Read More
Single transverse palmar crease
Definition noun The single crease or line extending across the palm, and formed by the fusion of the proximal and the... Read More
Eutherian mammal
Definition noun, plural: eutherian mammals Any from the group of mammals possessing chorioallantoic placenta (as opposed... Read More
Naturally acquired passive immunity
Definition noun A passive immunity that is acquired by the fetus or newborn through its mother, and typically lasts the... Read More
Leydig cell
Leydig cell interstitial cells of the mammalian testis, involved in synthesis of testosterone. leydig cell Leydig cells,... Read More
Amniotic fluid
Definition noun The protective fluid surrounding the developing fetus within the amniotic sac of a pregnant... Read More
Sexual reproduction
Sexual reproduction is a mode of reproduction involving the fusion of haploid female gamete (egg cell) and haploid male... Read More
Natural passive immunity
Definition noun A passive immunity acquired by the fetus or newborn from the mother via the placental transfer of antibodies... Read More
Genetic Control – On and Off Genes
Reviewed by: Mary Anne Clark, Ph.D. This lesson looks at the various factors involved that affect growth and... Read More