Rhesus Factor Genetics and Implications

The video tutorial explains the Rhesus factor in red blood cells, focusing on its genetic basis and implications for blood compatibility. It covers the presence of antigens on red blood cells, the genetic transmission of the Rhesus factor, and the potential for incompatibility issues, such as hemolytic disease of the newborn. The tutorial also discusses genetic calculations to determine the probability of Rhesus factor incompatibility, emphasizing the importance of understanding genetic inheritance patterns.

What is the primary function of the Rhesus factor on red blood cells?

• To transport oxygen

• To act as an antigen

• To provide energy

• To store nutrients

Which chromosome is responsible for coding the Rhesus factor?

• Chromosome 1

• Chromosome 2

• Chromosome 3

• Chromosome 4

How is the dominant gene for the Rhesus factor represented?

• Lowercase r

• Uppercase R

• Lowercase d

• Uppercase D

What percentage of the UK population is Rhesus negative?

• 5%

• 10%

• 15%

• 20%

In which population is the Rhesus negative trait least common?

• Bengali

• Chinese

• UK

• Indian

What is the probability of a Rhesus positive child if the mother is Rhesus negative and the father is heterozygous Rhesus positive?

• 50%

• 100%

• 75%

• 25%

What genetic combination results in a Rhesus negative individual?

• R

• rr

• Rr

• RR

What is the likelihood of Rhesus factor incompatibility if both parents are homozygous Rhesus positive?

• 25%

• 0%

• 50%

• 100%

Which genetic trait is dominant in the context of the Rhesus factor?

• Rhesus negative

• Both are equally dominant

• Neither is dominant

• Rhesus positive

What is the main cause of hemolytic disease of the newborn related to the Rhesus factor?

• Both parents Rhesus negative

• Rhesus negative mother and Rhesus positive father

• Both parents Rhesus positive

• Rhesus positive mother and Rhesus negative father