Cleavage is the division process in a zygote that lays the foundation for cellular differentiation. It involves specific patterns like radial, bilateral, and spiral cleavage, with determinate or indeterminate fate of blastomeres. Various laws govern cleavage, including Sach's, Hertwig's, and Balfour

8 views • 24 slides

Embark on a journey through the fascinating world of embryology with Dr. Sanaa Al Sharawi and Dr. Essam Salama. Delve into the definition, significance, and developmental periods of embryology, learning about prenatal and postnatal stages, common terminologies like oocyte and zygote, and critical pe

1 views • 22 slides

Human reproduction involves the complex processes of fertilisation and embryo development. Fertilisation occurs when the nucleus of a sperm cell fuses with the nucleus of an ovum to form a zygote. The zygote undergoes mitosis to develop into a blastocyst, which then implants into the endometrium. Th

0 views • 12 slides

Dryopteris, commonly known as wood fern or male fern, is a genus of ferns with around 250 species primarily found in the temperate Northern Hemisphere. These ferns have distinct characteristics like creeping rootstocks, fronds with sori, and triangular-shaped leaves with fiddlehead sprouts. The spor

0 views • 17 slides

Reproduction can occur through asexual or sexual means, each with its distinct processes and outcomes. Asexual reproduction involves only one parent and produces genetically identical offspring, while sexual reproduction involves the fusion of specialized sex cells from two parents to create genetic

1 views • 46 slides

Developmental biology, stemming from embryology, investigates how organisms evolve from a zygote. It merges various fields like genetics, cell biology, and cancer biology. Cell biology focuses on cell properties and behaviors, using tools like genomics and microscopy. Research areas include cancer c

0 views • 8 slides

Embryology is the study of the development of multicellular animals starting from fertilization when the sperm fertilizes the egg and forms the zygote. This initiates a series of events such as cleavage, morula formation, blastula development, and gastrulation, where three embryonic tissue layers ar

0 views • 24 slides

The process of reproduction in animals involves the crucial step of fertilisation, where a sperm fuses with an egg to form a zygote. There are two main types of fertilisation - internal and external. Internal fertilisation occurs within the female body, as seen in humans, cows, and other animals. On

0 views • 16 slides

Explore the process of pollination and fertilisation in flowering plants through an interactive quiz. Learn about the fusion of gametes, formation of endosperm and zygote, seed development, and more. Test your knowledge on plant reproduction and understand the intricate mechanisms involved.

1 views • 50 slides