A certain road accident patient with an unknown blood group needs immediate blood transfusion. His one doctor friend at once offers his blood. What was the blood group of the donor?
Correct answer: C. Blood group O
- A. Blood group B
- B. Blood group AB
- C. Blood group O
- D. Blood group A
Explanation
(c) : The blood group was O. The person having O blood group is the universal donor. It lacks both antigens 'A' and 'B' and thus does not cause agglutination or clumping of blood cells when transfused into a person with any of the four blood groups.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Inheritance
Mendel's laws explain segregation, independent assortment and the prediction of genetic ratios using alleles, genotypes and phenotypes. The chapter also covers linked genes, recombination and crossing over during meiosis, then applies pedigree reasoning to X-linked recessive traits, which show different inheritance patterns in males and females.
Practise Inheritance
1,238 free Inheritance MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Inheritance questions
In the ABO system of blood groups, if both antigens are present but no antibody, the blood group of the individual would be:
_ alleles both have an effect on the phenotype of a heterozygous organism:
Which of the following does not belong to the same linkage group?
A person with blood group AB is considered as universal recipient because he has
In our society women are blamed for producing female children. Choose the correct answer for the sexdetermination in humans.
Homozygous dominants are represented with a :