Virat's family doesn't know his blood group - Page 3

Originally posted by: NoraSM

🤣 I can't with this

Sai has AB- blood group

Virat has donated to her before maybe his blood group is something negative too, if his blood group is something negative then one of his parents should be the same

Anyway, How come none knows his blood group?

Well...you are right...but not exactly. There is nothing wrong with what you said about family not knowing Virat's blood group is AB-ve. Because AB-ve is one of the most rare blood groups and so, such people usually give their blood in the blood bank if there is some upcoming surgery or something.

So, yeah. Virat's family should have known it, because it is kind of a big deal. Not only this, they should know it regardless of what his blood group is.

However, as for the statement that one of their parents should be negative too, that is not exactly correct. You see, A, B, O or AB blood group and +ve and -ve signs, both are gene related and hence hereditary. While we can predict the blood group of child from that of parents, we cannot predict whether the child would be rh positive or rh negative. This is why rh negative is so rare. This particular gene, or its lack thereof, can come from anywhere in the entire family tree and can remain recessive for many years. So, just because Virat's blood group is -ve, it doesn't mean that Ashwini's or Ninad's should be too.

I am not entirely sure if this was what you meant in your post, but I read it that way and felt like correcting it.

PS: For someone to donate blood, not only +ve or -ve sign but both should match. For eg., only an AB+ve can donate blood to an AB+ve, not AB-ve. Similarly only an AB-ve can donate blood to AB-ve, not AB+ve.

Exeptional case for O+Ve : which is universal donor (not for an rh negative though)

Originally posted by: Tumpa12

Not everyone is the same....my parents blood group is B+ , my sister's too... but mine is O+

That can happen. There is an entire table which we study for blood group predictability.

See B+ve of your parents has two genes: i (recessive hence show no trait. Its trait would have been O) and Ib (which is dominant one so that is what shows up front i.e. B)

Thus, there children can have i Ib which would lead to B blood group, and i i. You have the latter, i.e., both are recessive ones, so they show up and your blood group is O

PS: Don't know why I am baating so much gyaan, but actually this is one of my favourite topics so I am really excited to discuss this

Originally posted by: msin

I don’t think everyone knows the blood group .. virat had a bullet injury so ninad should have known ..

they should have shown .. virat volunteering openly to donate blood .. and calling ninad or ashwini ( one parent would have been negative .. for him to be negative ) to donate the blood to Sai

It would have been awesome if ninad and virat had donated blood openly .. for Sai

Well, not exactly. The parents blood group can predict that of child's but +ve or -ve can or cannot match. Basically a child can be negative even if both parents are positive.

Also, even if it was true, it wouldn't really matter because there is still a possibility that Ashwini and Ninad's blood group wouldn't match Virat's. Theirs can be A and B, for Virat's to be AB.

PS: ...Am I being rude? Actually I am just really excited to discuss something which I am studying right now. so...that is why...I am... correcting every single one😳

Originally posted by: ShipIsSailing

Well...you are right...but not exactly. There is nothing wrong with what you said about family not knowing Virat's blood group is AB-ve. Because AB-ve is one of the most rare blood groups and so, such people usually give their blood in the blood bank if there is some upcoming surgery or something.

So, yeah. Virat's family should have known it, because it is kind of a big deal. Not only this, they should know it regardless of what his blood group is.

However, as for the statement that one of their parents should be negative too, that is not exactly correct. You see, A, B, O or AB blood group and +ve and -ve signs, both are gene related and hence hereditary. While we can predict the blood group of child from that of parents, we cannot predict whether the child would be rh positive or rh negative. This is why rh negative is so rare. This particular gene, or its lack thereof, can come from anywhere in the entire family tree and can remain recessive for many years. So, just because Virat's blood group is -ve, it doesn't mean that Ashwini's or Ninad's should be too.

I am not entirely sure if this was what you meant in your post, but I read it that way and felt like correcting it.

PS: For someone to donate blood, not only +ve or -ve sign but both should match. For eg., only an AB+ve can donate blood to an AB+ve, not AB-ve. Similarly only an AB-ve can donate blood to AB-ve, not AB+ve.

Exeptional case for O+Ve : which is universal donor (not for an rh negative though)

I agree there's chances of parents being positive and having one Rh- allele which is recessive, for a child to be negative and both parents being positive, both have to have one Rh+ and one Rh- allele then there has to be vertical gene transfer of both recessive alleles for Rh- to express. The chance is 3:1 on papers

In real world situation, what exactly is the statistics of both parents being Rh+ positive and passing along a recessive negative allele?

Originally posted by: NoraSM

I agree there's chances of parents being positive and having one Rh- allele which is recessive, for a child to be negative and both parents being positive, both have to have one Rh+ and one Rh- allele then there has to be vertical gene transfer of both recessive alleles for Rh- to express. The chance is 3:1 on papers

In real world situation, what exactly is the statistics of both parents being Rh+ positive and passing along a recessive negative allele?

Rare. But that is just because rh negative is rare in itself. Technically the fact that Virat is Rh negative means that they both had heterozygous dominant alleles.

However, SaiRat's child will certainly be rh negative coz both are negative. I really hope at least they remember that.

This thread is slowly resembling one of my genetics ka notes from 12th std. Feeling nostalgic

Originally posted by: Devikadish

This thread is slowly resembling one of my genetics ka notes from 12th std. Feeling nostalgic

Originally posted by: ShipIsSailing

Arre khul ke haso yaar😆

Originally posted by: Devikadish

Arre khul ke haso yaar😆

Khul ke to aap hasengi.

My OS is in work😆

Originally posted by: ShipIsSailing

Khul ke to aap hasengi.

My OS is in work😆

Really?!?!? I am already happy