- 查看更多
前往 Wikipedia 查看全部内容Cleavage (embryo) - Wikipedia
In embryology, cleavage is the division of cells in the early development of the embryo, following fertilization. The zygotes of many species undergo rapid cell cycles with no significant overall growth, producing a cluster of cells the same size as the original zygote. The different cells derived from cleavage are called … 展开
Compared to other fast developing animals, mammals have a slower rate of division that is between 12 and 24 hours. Initially synchronous, these cellular divisions progressively … 展开
• Wilt F, Hake S (2004). Principles of Developmental Biology. W.W. Norton. ISBN 978-0-393-97430-0.
• Valentine … 展开Determinate
Determinate cleavage (also called mosaic cleavage) is in most protostomes. It results in the developmental fate of the cells being set early in the embryo development. Each blastomere produced by early embryonic cleavage does … 展开CC-BY-SA 许可证中的维基百科文本 43.5B: Cleavage, the Blastula Stage, and Gastrulation
网页2023年10月31日 · Cleavage and Blastula Stage. The development of multi-cellular organisms begins from a single-celled zygote, which undergoes rapid cell division to form the blastula. The rapid, multiple rounds of cell division are termed cleavage. After the …
An Introduction to Early Developmental Processes
网页The pattern of embryonic cleavage particular to a species is determined by two major parameters: the amount and distribution of yolk protein within …
- 作者: Scott F Gilbert
- 已发布: 2000
- Publish Year: 2000
Animal Development I: Fertilization & Cleavage
Cleavage | Cellular, Morphogenesis & Gastrulation | Britannica
网页Cleavage, in embryology, the first few cellular divisions of a zygote (fertilized egg). Initially, the zygote splits along a longitudinal plane. The second division is also longitudinal, but at 90 degrees to the plane of the first. The third division is perpendicular to the first two and is.
52.2: Cleavage and the Blastula Stage - Biology LibreTexts
网页Discuss the role of cleavage and gastrulation in animal development. The process in which an organism develops from a single-celled zygote to a multi-cellular organism is complex and well-regulated. The early stages of embryonic development are also crucial for …
3.2: Cell Division and Movement: Cleavage - Biology …
网页Cleavage. Cleavage stages of embryogenesis are typically very similar across animals. During cleavage a single cell embryo rapidly divides to form a ball of cells, called a blastula. This ball may be hollow inside, have …
Post Fertilization and Pre-Embryonic Stage – Human …
网页The process by which the cells go into mitotic division after fertilization is known as cleavage. The solid mass at 16-cell conceptus is called morula. The blastocyst is the fluid-filled space within the conceptus developed …
