00:01
So here we have been asked to draw a simple pedigree of four generations and those four generations are being described as below.
00:11
They are telling that they have original parents and they produce a male and a female child where the male married and has two sons.
00:31
So as the question is being asked, we will draw the same chart.
00:39
So here we will draw male and female who marries to have a daughter and a son, after which the male child marries and they have two sons.
01:09
Now the female side also marries and give birth to two daughters.
01:31
Next it has been told that one of her daughters marries and has a son and a daughter.
01:42
So here if we talk about then this is the first generation, then comes the second generation, then here this is the third generation and next will be fourth generation where one of her daughter marries to have a son and a daughter.
02:19
So this was the whole generation which was given to us.
02:23
This will be fourth generation.
02:25
Now it is told that the female in the first generation, the son in the second generation and both children in the four generation.
02:35
Expression express the trait.
02:37
So according to the question, we need in the first generation, son in the second generation and both the children in fourth generation means these were.
02:57
They are expressing the trait.
03:03
Now we have to find and determine that this trait is dominant or recessive.
03:11
So here this trait will be recessive because they are not continuous in every generation.
03:39
Next is that whether this is sex linked or not.
03:43
Then this trait is not sex linked here because this trait is affecting both male...