The gradual disintegration of the sperm plasma membrane following insemination. This process is seen in Drosophila after entry of the entire sperm, surrounded by its plasma membrane, into the egg.

A motor activity that generates movement along a microfilament towards the plus end, driven by ATP hydrolysis. The minus end of an actin filament is the end that does not preferentially add actin monomers.

The directed movement of the male and female pronuclei towards each other prior to their fusion.

A vestibular reflex by which a response to a linear acceleration stimulus begins with an afferent nerve impulse from a receptor in the otolith and ends with the compensatory action of eye muscles. Signaling never reaches a level of consciousness.

A reflex process in which a response to an angular or linear acceleration stimulus begins with an afferent nerve impulse from a receptor in the inner ear and ends with the compensatory action of eye muscles. Signaling never reaches a level of consciousness.

The process in which a relatively unspecialized cell acquires specialized structural and/or functional features of a Sertoli cell. A Sertoli cell is a supporting cell projecting inward from the basement membrane of seminiferous tubules.

Catalysis of the transfer of a methyl group to juvenile hormone acid.

A vestibular reflex by which a response to an angular acceleration stimulus begins with an afferent nerve impulse from a receptor in the semi-circular canal and ends with the compensatory action of eye muscles. Signaling never reaches a level of consciousness.

The formation of the ectoderm, mesoderm and endoderm during gastrulation.

Binding to a nuclear androgen receptor.

Removal of the sperm nuclear envelope, allowing entry of maternal factors into the sperm nucleus.

The controlled breakdown of the nuclear membranes, for example during cellular division.

The formation of ectoderm during gastrulation.

Binding to an AF-2 protein domain, a highly conserved ligand-dependent transactivation domain which is essential for receptor-mediated transcriptional activation.

The formation of the endoderm during gastrulation.

Binding to an AF-1 protein domain, a ligand-independent transactivation domain which is required for the full transcriptional activity of the receptor.

A complex and coordinated series of cellular movements that occurs at the end of cleavage during embryonic development of most animals. The details of gastrulation vary from species to species, but usually result in the formation of the three primary germ layers, ectoderm, mesoderm and endoderm.

Assembly of a nuclear envelope containing nuclear pores and a lamina around the male pronucleus, the final step in sperm pronuclear formation.

Formation and organization of an aster composed of microtubule arrays originating from the sperm basal body and extending virtually to the egg periphery. The sperm aster ensures the appropriate positioning of the male and female pronuclei.

The process whose specific outcome is the progression of the embryo in the uterus over time, from formation of the zygote in the oviduct, to birth. An example of this process is found in Mus musculus.