GENETICS Please Help! The answers have been provided under the question but I re

Question

GENETICS Please Help! The answers have been provided under the question but I really need to see the work/explanation is done as I do not understand. Thank you very much!!

A) For the child of mother (a), the father could be:   
1 or 4

B) For the child of mother (b), the father could be:   
Answer: 1 or 3

C) For the child of mother (c), the father could be:   
Answer: 5

D) For the child of mother (d), the father could be:   
Answer: 2

E) For the child of mother (e), the father could be:   
Answer: 1 or 3 or 4

(a) (c) (d) (e) Maternal Phenotype A MR B Nr OMr ANR AB MINr Child Phenotype OMR ONr A MNR AB MNR A MN r Genotype of Male 2. PiMN RR. 3. iiNNrr 4. iiMMrr 5. AIAMNRR

Explanation / Answer

A) For the child of mother with phenotype AMR, the father genotype could be:   IAi MNrr and ii MMrr.

Rh factor

Possible genotypes

Rh+

Rh+/Rh+
Rh+/Rh-

Rh-

Rh-/Rh-

Mother

Father

Child

Rh+

Rh-

Rh+

Rh-

Rh-

Rh-

Mother

Father

Child

Rh-

Rh+

Rh+

Rh-

Rh-

Rh-

B) For the child of mother (b), the father could be: IAi MNrr and iiNNrr.

Here mother’s phenotype is BNr and must have the genotype IB iNNrr and when married with the person carrying the gene either IAi MNrr or iiNNrr will have child with ONr phenotype

C) For the child A MN R of mother OMr (c), the father could be:   IAIAMNRR

Because the mother has the genotype iiMMrr and the father has IAIAMNRR genotype and they may have the child with A MN R phenotype with either IAIAMNRr or IAi MMRr genotype.

D) For the child of mother (d), the father could be: genotype IB iMNRR

Maternal phenotype ABMNR with genotype IA IB MNRR or IA IB MNRr and paternal genotypeIB iMNRR may have , child with phenotype ANR with genotype either IAi NNRR or IAi NNRr.

E) For the child of mother (e), the father could be:   IAi MNrr , iiNNrr, iiMMrr
Child’s Phenotype=A MN r

Child’s genotype=: :   IA IA MNrr or IAi MNrr

Mother’s phenotype-AB MN r

Mother’s genotype= IA IBMN rr , So the father with genotype IAi MNrr or iiNNrr or iiMMrr may produce A MN r phenotype offspring.

Rh factor

Possible genotypes

Rh+

Rh+/Rh+
Rh+/Rh-

Rh-

Rh-/Rh-

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