- menopause
Cessation of menstruation, occurring in (e.g.) the human female usually around the age of 50.
- nuclear speck
A discrete extra-nucleolar subnuclear domain, 20-50 in number, in which splicing factors are seen to be localized by immunofluorescence microscopy.
- short tract gene conversion
A gene conversion process in which a segment of about 50-200 base pairs is transferred from the donor to the acceptor.
- mossy fiber rosette
A synapse of a mossy fiber onto the dendrite of a granule cell; each mossy fiber can have up to 50 rosettes.
- spherule viral factory
A cytoplasmic viral factory which is a 50-400nm diameter membrane invagination. Spherules can appear on several enveloped cellular components depending on the virus.
- cellulose metabolic process
The chemical reactions and pathways involving cellulose, a linear beta1-4 glucan of molecular mass 50-400 kDa with the pyranose units in the -4C1 conformation.
- apoptotic DNA fragmentation
The cleavage of DNA during apoptosis, which usually occurs in two stages: cleavage into fragments of about 50 kbp followed by cleavage between nucleosomes to yield 200 bp fragments.
- regulatory RNA binding
Binding to a small regulatory RNA, a short RNA (usually 50-200 nt long) that is either independently transcribed or processed from a longer RNA by an RNAse enzyme.
- cellulose biosynthetic process
The chemical reactions and pathways resulting in the formation of cellulose, a linear beta1-4 glucan of molecular mass 50-400 kDa with the pyranose units in the -4C1 conformation.
- cellulose catabolic process
The chemical reactions and pathways resulting in the breakdown of cellulose, a linear beta1-4 glucan of molecular mass 50-400 kDa with the pyranose units in the -4C1 conformation.