Forensics blood genetics

When you cross two parents, each parent is responsible for passing _______ of their two alleles for each individual trait.

• 1

• 2

• 3

• 4

If a red blood cell has no antigens on its surface, what is its blood type?

• A
• B
• AB
• O

If two parents are heterozygous for type A blood, what is the probability that their offspring would have type O blood?

• 100 %
• 75%
• 50%
• 25%

Jim has type AB blood. His dad could be type O.

• True
• False

If two parents have type AB blood, what is the probability that their child will have type O blood?

• 0%
• 25%
• 50%
• 100%

Someone with type A blood can receive blood from someone who is type AB.

• True
• False

What protein is found in red blood cells that binds to and transports oxygen?

• peptidoglycan

• iron

• hemoglobin

• plasma

Which two blood type alleles are codominant?

• Group A and Group O

• Group A and Group B

• Group B and Group O

• Blood types do not show codominance

A man is group O and his wife is group B. What are the possible genotypes of the children ____ or ____?

Which antigen determines if an individual is postive or negative?

• A

• B

• AB

• Rh(D)