Spindle fibres of mitotic cell are made up of
tubulin
actin
myosin
collagen
A.
tubulin
Spindle fibres are formed during cell division. These are made up of tubulin. Each tubulin molecule is made up of a. and B sub-units. Tubulin molecules are attached heat to tail and form a strand and 13 strands aggregate to form a microtubule. These microtubules are attached to kinetochores of. metaphase chromosomes and play an important role in the movement of chromosomes during subsequent stages of cell division.
Gemmule formation in sponges are useful in
asexual reproduction
sexual reproduction
parthenogenesis
parthenocarpy
Systemic heart refers to
entire heart in lower vertebrates
the two ventricles together in humans
the heart that contracts under stimulation from nervous system
left auricle and left ventricle in higher vertebrates
If frog's brain is crushed, even then its leg moves on pinpointing. It is called
simple reflex
conditional reflex
neurotransmitter function
autonomic nerve condition
