00:01
The question says, so here in this question we are asked about the significance of nodes in the cladogram.
00:08
So what is a cladogram? so cladogram is nothing but a pictorial or diagrammatic representation of the evolutionary processes.
00:18
Okay, between organisms or simply we can say that a cladogram is a evolutionary tree that tells us about the evolutionary significance.
00:30
Or relationship between different organisms that have been associated with the same.
00:38
So simply in a go we can tell about the relationship between multiple organisms using a cladogram and any other phylogenetic trees.
00:49
So this is a simple example for the cladogram between the members of the kingdom plant.
00:56
So the green dot here encircled by the square black square is the node.
01:03
So node is that structure.
01:06
So in the option it is said that there are different options are given.
01:11
So the narrower lines here in the cladogram 1 that represent the extinction or extinted species in the cladogram.
01:21
So they are not represented by nor.
01:23
And the common ancestor or the single ancestral point to all the other organism is represented at the base of the cladogram.
01:35
So it is singly present.
01:38
And after that, the speciesation occurs and different organism form.
01:42
So that thing is the common ancestor, the small black dot that is present in the base.
01:49
Okay, that is the single ancestral node...