Blood Type Genetics and Inheritance

The video tutorial explains the concept of co-dominance using human blood types as an example. It covers the genotypes and phenotypes of blood types A, B, AB, and O, and uses a Punnett square to solve a problem involving the potential blood types of children from parents with specific genotypes. The tutorial concludes with a summary of the possible outcomes, highlighting the co-dominant nature of alleles A and B.

What is an example of co-dominance in human genetics?

• Eye color

• Blood type

• Height

• Hair texture

Which blood type is considered recessive?

• Type A

• Type B

• Type O

• Type AB

What is the genotype of a person with blood type AB?

• ii

• IAIA

• IAIB

• IBIB

If Brad Pitt is heterozygous for type B and Angelina Jolie is homozygous for type A, what is Brad's genotype?

• IBi

• IAIB

• IAIA

• ii

What tool is used to predict the possible blood types of Brad and Angelina's children?

• Genetic map

• Punnett square

• Pedigree chart

• Karyotype

In a Punnett square, which allele is written first when crossing IA and IB?

• It doesn't matter

• IB

• IA

• i

What is the percentage chance of Brad and Angelina having a child with blood type AB?

• 25%

• 100%

• 50%

• 75%

What is the percentage chance of Brad and Angelina having a child with blood type A?

• 100%

• 75%

• 50%

• 25%

Which blood type is a result of a heterozygous genotype involving a dominant and a recessive allele?

• Type AB

• Type B

• Type A

• Type O

What is the final answer for the possible blood types of Brad and Angelina's children?

• Only type B

• Type AB and type A

• Type O and type B

• Only type A