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
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
In Dianthus, placentation is
Basal
Free central
Axile
Marginal
B.
Free central
In free central placentation, the syncarpous gynoecium is unilocular and the placenta are borne on a central column formed by an extension of the base of the gynoecium where the carpels fuse or the suppression of septa. e.g. Stellaria, Dianthus
A fern prothallus is bisexual. If fertilisation takes place between their gametes than it is known as
cross- fertilisation
self- fertilisation
isogamous
viviparous