Using Blood Tests To Identify Babies (Page 2 of 2) in pdf

Using Blood Tests To Identify Babies Page 2

#4. In a heterozygous I

i person, which allele is dominant, I

or i? Explain your reasoning.

#5. Which one of the genotypes shown above results in a phenotype that provides clear

evidence of codominance? Give the genotype draw and label a picture of a red blood cell

for this genotype to illustrate how both alleles influence blood type in this case.

#6. Now, suppose that a mother has blood Type A and genotype I

i and the father has

blood Type B and genotype I

i. Draw a Punnett square to show the possible genotypes and

list the blood types (phenotypes) for their children.

T.S ____________________

#7. Answer Yes, or No as to whether agglutination has occurred in each baby’s sample.

A positive agglutination reaction indicates the blood type. Determine the blood type of the

babies using the data table.

DATA TABLE

Anti-serum

Baby Michael, Jr

Baby Michelle

Baby Tonja

Anti-A

Anti-B

Blood Type

#8. Was a switch made at the hospital? How do you know this? Explain.

#9. The following family tree shows the blood types for both families.

Is it possible for Michael and Danielle to have a child who is type O? How do you know

this? Explain. (Complete the tree for help with child’s name and blood type). (Complete the

tree for help with child’s name and blood genotype and the parent’s blood genotypes).

Using Blood Tests To Identify Babies Page 2