American Journal of Botany, Vol. 62, No. 2 (Feb., 1975), pp. 105-115 (11 pages) This investigation begins with the late zygote and traces ultrastructural development to the late globular stage of the ...

With each week of pregnancy, your baby-to-be is developing in leaps and bounds. In the early stages, they are called a zygote. They then progress to an embryo, fetus, and finally, baby. You might hear ...

This is a preview. Log in through your library . Abstract The early developmental sequences in the formation of the Zone of Separation and Secretion in a hexaploid species of Solanum nigrum L. are ...

Scientists show how a fertilized egg cell, or zygote, hits 'reset' so that the newly formed embryo can develop according to its own genetic program. New work by scientists in the U.S. and China shows ...

You were once a single-celled zygote — a microscopic blob of tissue. But over the course of nine months or so, you developed into a breathing, eating, crying baby. This process really is one of the ...

The process of embryogenesis begins when an egg or ovum is fertilized by a sperm cell to form a zygote. This zygote then undergoes mitotic division, a process that does not result in any significant ...