Study the following statements and select the option with correct statements.
I and II
I and III
II and III
I, II and III
The material, which arrests cell division, is obtained from
Crocus
Colchicum
Dalbergis
Chysanthomum
B.
Colchicum
Colchicine is an antibiotic drug, which is obtained from Colchicum (family-Liliaceae). It binds to one tubulin molecule an prevents its polymerisation. The depolymerisation of tubulin results in the disappearance of mitotic spindle blocking the cell's mitotic chromosomal division at metaphase and anaphase.
Three floral diagrams are given here. Their respective families are assigned in the answer key. Find out the families to which these diagrams belong to
A-Liliaceae, B-Asteraceae, C-Solanaceae
A-Asteraceae, B-Solanaceae, C-BRassicaceae
A-Asteraceae, B-Solanaceae, C-Asteraceae
A-Poaceae, B-Solanaceae, C-Asteraceae
A fern prothallus is bisexual. If fertilisation takes place between their gametes than it is known as
cross- fertilisation
self- fertilisation
isogamous
viviparous