Z Terms

Browse the List of Terms
Sort by :   Default  |  Title  
Zona pellucida
The protective coating around the egg and early embryo.
Zone of proximal development
This term refers to what researchers consider to be the difference between what a child can do with help and what he or she can do without ... Read More
Zygote
The name for the fertilized ovum during the first two weeks after conception. After this stage, the fertilized ovum is called an embryo. ... Read More
Zygote Intra-Fallopian Transfer (ZIFT)
ZIFT is an assisted reproductive procedure where a fertilized embryo is transferred into the fallopian tube (instead of the uterus as in ... Read More
Real-mom dispatches from the Baby Zone
watch more videos