Blood types Quiz

Why is careful matching of blood types crucial in transfusions?

• To avoid serious adverse effects during transfusions
• To reduce the cost of blood products
• To increase the availability of O-type blood
• To speed up the blood donation process

What distinguishes A and B blood types from O-type blood at the molecular level?

• The absence of antigens
• The presence of specific sugar antigens on the RBCs
• The type of haemoglobin present
• The colour of the blood cells

What was significant about the 1982 demonstration by Goldstein regarding blood conversion?

• It showed that O-type blood could be produced from A-type blood
• It provided proof-of-principle transfusions without adverse effects in humans
• It identified a new blood type
• It was the first use of automated blood typing

Which enzymes were identified in 2007 to improve the conversion of B-type blood to O-type?

• GalNAc deacetylases and α-galactosidases
• β-glucosidases and α-fucosidases
• Haemoglobin enzymes
• Glycosyltransferases

What does the abstract mention as a remaining challenge in the use of enzymes for blood conversion?

• Lack of funding for research
• Difficulty in obtaining blood samples
• Limited availability of rare donors
• Remaining challenges in enzyme efficiency and application

Besides increasing the stock of O-type blood for transfusions, what other application is mentioned for the enzyme system?

• Producing more A-type blood
• Enhancing blood storage techniques
• Organ transplantation
• Blood donation drives