Vincent has type A blood and his mother has type O blood. What is his genotype?
or [similar question]:
Christine has type B blood and her father has type O blood.
What is her genotype?
The blood type genetic problems are really confusing me. How do you figure out their genotypes?
2007-12-09 09:46:26 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Biology
~thanks so much for the help!
2007-12-09 10:00:19 · update #1
Blood type is determined by alleles on three loci: A, B, and i. A and B share dominance and i is the recessive between the three. For instance, Ai is blood type A. AB is bloodtype AB, BB is type B, ii is type O, and so on.
1. Vincent's genotype is Ai since his mother is ii. He received the i allele from his mother and A from his father.
2. Christine is type Bi since her father is ii.
2007-12-09 10:19:12 · answer #1 · answered by Shinya 3 · 3⤊ 0⤋
To have the recessive type O blood you have to have two O alleles (one from your mother and one from your father). Therefore Vincents mother and Christine's father have the genotype OO and would always contribute an O allele.
Vincent has the genotype AO (the A given to him via his father) and Christine has the genotype BO (the B given to him via her mother.
O O
A AO | AO
? ?O | ?O
2007-12-09 09:56:31 · answer #2 · answered by jlrieff 3 · 1⤊ 0⤋
The "A" and "B" genes are dominant. Since Vincent's mother has "O" blood, both her genes for blood antigens must be "O". Since Vincent's mother must pass down a gene, she passes down "O", but Vincent has "A" type blood, so he got "A" from his father. Thus Vincent's blood genotype is AO.
2007-12-09 09:59:12 · answer #3 · answered by Lbd 2 · 1⤊ 0⤋
Jack's genotype is obviously AO, considering that he had to inherit the O allele from his mom, who has them on the two her chromosomes. the mum's genotype is OORh-Rh-. To be Rh-, Jack has to have the Rh- allele on the two his chromosomes, so he's AORh-Rh-. His father is Rh-Rh- and has to hold a minimum of one A allele. Luisa is obviously BORh+Rh-, considering that she had to inherit an Rh- from her mom (Rh-Rh- and a minimum of one B) and a O from her father (OO and a minimum of one Rh+). Jack and Luisa's infants make rather the exciting bunch... perfect genetics concern, somewhat. There are 8 distinctive, the two available genotypes AND phenotypes their infants might have. they have a a million/8 risk of having a AORh+Rh- new child, a million/8 for a AORh-Rh- new child, a million/8 for a BO Rh+Rh-, a million/8 for BO Rh-Rh-, a million/8 for ABRh+Rh-, a million/8 for ABRh-Rh-, a million/8 for OORh+Rh- and a million/8 for OORh-Rh-.
2016-11-15 01:35:04 · answer #4 · answered by Anonymous · 0⤊ 0⤋
I agree with Khoa.
There are three alleles(A,B, and i) that determine blood types.
Christine has Bi blood, which meant that her dad has the blood type ii.
2007-12-11 13:53:51 · answer #5 · answered by ? 5 · 1⤊ 0⤋
vincent has type "A" blood with a recessive "o" so "Ao"
"Bo" for christine
oh and to figure it out you use the punnett squares mehtod
http://en.wikipedia.org/wiki/Punnett_square
hope this helps :D
2007-12-09 09:55:53 · answer #6 · answered by Rhys 2 · 1⤊ 0⤋
Do not discriminate ABO group B gene, although its nomadic adhd gene. (low frontal lobe activity+amygdala hijack)
http://www.hy-ls.org/index.php/hyls/article/view/4
ABO GROUP B IS ASSOCIATED WITH PERSONALITY TRAITS THROUGH LINKAGE DISEQUILIBRIUM WITH LOW ACTIVITY DOPAMINE BETA HYDROXYLASE
2014-01-26 18:46:38 · answer #7 · answered by volvo942 1 · 0⤊ 0⤋