Genotype problem?

Question

A normal visioned man of blodd type A marries a normal-visioned (carrier) female of blood type B

Give the most possible genotypes of the parents

Answer 1

Most probable genotypes of these parents are:

Normal vision man with blood type A: XBY AO because
a. normal vision is a dominant sex-linked trait found on the X-chromosome; therefore he has XBY where B is the dominant gene for normal vision (not colorblindness)
b. he has Type A blood, but the O allele is the most common allele in the population of the United States. If he isn't AO, then he is AA, but in the U.S. AO is more likely.

Normal-visioned carrier female of blood type B is most likely to be XBXb BO because
a. she is a carrier so she has normal color vision and also has the recessive allele, so she's XB Xb
b. she has Type B blood, but the O allele is the most common in the population of the United States, so she's most likely to be BO. If she isn't BO, then she is BB.

Note: depending on which notation system you use, the man may be AO or IAi. The woman may be BO or IBi.

Answer 2

NB Parent 1 (man) is the top (row)
Parent 2 (female) is the side (column)

.... A... A
B AB AB
B AB AB
if both parents' bloody types are homozygous then the offspring will definitely be AB bloody type

.... A... a . a - O blood type (recessive allele)
B AB Ba
B AB Ba
if parent with blood type A is homozygous and the other heterozygous then the offspring has a 50% chance of being AB or B blood type

.... A... A . . b - O blood type (recessive allele)
B AB AB
b Ab Ab
if parent with blood type B is homozygous and the other heterozygous then the offspring has a 50% chance of being AB or A blood type

.... A... a . . . . a/b - O blood type (recessive allele)
B AB Ba
b Ab ab
if both parents are heterozygous then there is:
25% chance of being AB blood type
25% chance of being A blood type
25% chance of being B blood type
25% chance of being O blood type



Normal vision - V
Abnormal vision - v (recessive allele)
.... V... V
V VV VV
V VV VV
in this scenario, all offspring will have normal vision

.... V... v
V VV Vv
V VV Vv
in this scenario all offspring will have normal vision

.... V... V
V VV VV
v Vv Vv
in this scenario all offspring will have normal vision

.... V... v
V VV Vv
v Vv vv
in this scenario there is 25% chance of the offspring having abnormal vision and 75% chance of the sight being normal


Parent 1 is likely to either be AA or Aa blood type with a VV or Vv allele for vision

Parent 2 is likely to either be BB or Bb blood type with a VV or Vv allele for vision

Answer 3

i think of this question is loaded. can we actually communicate genotypes, while purely phenotypes are provided? not purely that, however the phenotypes of the father and mom do not present day an offspring with an predicted phenotype. this question probable desires to be re-examined by your instructor, if that's the guy who generated it. suited, dumbdumb.