I need help with this question, Please lead me to the right answer and tell me w

Question

I need help with this question, Please lead me to the right answer and tell me why it is correct.

The top part here is a guide to help you answer the question (Level 5 Punnett Squares) :

Here is the bottom part that I need help with:

Guided Practice Workspace Blood type in humans is controlled by multiple alleles of the same gene. The A and B alleles of this gene are codominant, while the O allele is recessive. A man with AB blood marries a woman with BO (Iei) blood genotype. What are the expected genotypes and phenotypes of their offspring? Father's Genotype Mother's Genotype 1235 Label the Punnett square with the parents' genotypes. Use the keypad to enter the alleles. You may use the superscript boxes or not, depending on which blood tvpe convention you use

Explanation / Answer

In human, there are four blood group A, B, AB, and O. Our blood type is inherited from our parents. Each human has ABO blood system in which A and B genes are dominant and O gene is recessive means when O gene is paired wuth an A gene, the blood type will be A. possible genotypes are

IA IA and IA Ii = A blood type

IBIB and IB Ii = B blood type

IA IB = AB blood type

IiIi = O blood type

Here, A men with AB bloid group marries a women with B blood group whose genotype is IB Ii

IAIB x IBIi

IA IB

IB. IAIB. IBIB

Ii. IAIi. IBIi

So here, total 4 genotype and 3 phenotype in punett square.

There is 4 genotype in the interactive.

1/4 means 25% offspring are predicted to have A blood phenotype

Individual with type O blood type, blood cells with no antigen. Because red blood cell of O blood group contain no antigen on the cell surface where as A blood group means A antigen on cell surface and B blood group means B antigen on the cell surface.

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