Two parents have type O blood. That means their first child will have type O blood as well. True or False?

Question

Two parents have type O blood. That means their first child will have type O blood as well. True or False?

Answer 1

True

Answer 2

false

Answer 3

all their kids must be O, if the kid is rH - o rh + is a different story (Rh doesn´t affect blood type you can have A+, A-, O+, O-)  . So is true (even though a rare genetic trait causes false O in people who are A or B but cannot fix the antibody to blood cells, but since is genetic it would most likely be passed down)

Answer 4

most likley yes.

Answer 5

True.

Answer 6

depends...is one O positive and one O negative?

if they are both O+ then yes...they will be type O as well.

because type O is ii

ii x ii

ii x ii

ii x ii

ii x ii

all ii=O

Answer 7

they will all have type O blood

Answer 8

true, if the gene for type O blood is recessive

Answer 9

well, actually, both my parents are o positive and so are my brother and sister, but I am o negative. So, I am wondering if this is possible as well.

So, most likely yes,the baby should be o as well.

Answer 10

most likely, but other types can show up, unless o isn't the dominant gene

Answer 11

false but the punnett square tells us that it is much more likely

Answer 12

True.

This is a trick question: ALL of their children will have type O blood! The only way that you can have type O blood is if you only have 'O' alleles to pass on to your offspring, because O is recessive. Therefore, the couple only has genes with the O type, so ALL of their kids will be type O!

Answer 13

True. Even though Type O is recessive allele, there are no other alleles to mask the Type O blood, therefore making type O the expressive gene. However, if there's ANY type of other blood type present, say Type A or Type B, the Type O will be masked because Type A and Type B are both dominant alleles. Conclusion: Type O is recessive, and it can only be expressive only and if only there are no other genes present. The presence of any other gene will mask the Type O blood. Hope this helps.

Answer 14

That's definitely True.  In fact ALL of their children will be O.

Type O Blood results in the absence of A and B markers.

If someone has type O blood, they don't have any A or B, and thus don't have any to pass onto their own offspring.