Understanding Blood Groups and Genetics

What is the primary function of antigens on red blood cells?

• To transport oxygen

• To determine blood type

• To fight infections

• To produce antibodies

Which blood group is considered a universal donor?

• Blood group B

• Blood group A

• Blood group O

• Blood group AB

What letter is universally used to represent alleles in blood group genetics?

• O

• I

• B

• A

In co-dominance, how are traits expressed?

• Traits are blended

• Traits are not expressed

• Both traits are equally visible

• One trait is dominant over the other

What is the relationship between blood groups A and B in terms of dominance?

• B is dominant over A

• A is dominant over B

• A and B are co-dominant

• A and B are recessive

How is blood group O expressed in terms of alleles?

• Two dominant alleles

• One dominant and one recessive allele

• Two recessive alleles

• One co-dominant allele

What is the limitation of using blood groups for paternity testing?

• It can confirm a father

• It can determine the mother's blood group

• It can only eliminate a potential father

• It is more accurate than DNA testing

Why can't a male with blood type AB have a child with blood group O?

• AB blood type can only produce AB offspring

• O blood type requires a co-dominant allele

• O blood type is dominant over AB

• AB blood type cannot produce O alleles

What is the significance of using a monohybrid cross in genetics?

• To study non-inherited traits

• To analyze environmental influences

• To identify multiple genetic traits

• To determine the phenotype of a single trait

Which blood group can receive blood from any donor?

• Blood group AB

• Blood group B

• Blood group A

• Blood group O