alleryStart learning →How many genotypes are possible for the human ABO blood groups?
ANine genotypes
BSix genotypes
CFour genotypes
DThree genotypes
Answer & Solution
Correct answer: B. Six genotypes
Three alleles taken two at a time, including identical pairs, give six genotypes.
Keep practising Principles of Inheritance and Variation
Browse all Principles of Inheritance and Variation questions for Bihar Board Class 12 (Science), or explore more Biology topics.
Related questions
Failure of cytokinesis after telophase leads to which condition, common in plants?In sickle-cell anaemia, which amino acid replaces glutamic acid in the beta globin chain?Who used recombination frequency to map gene positions on a chromosome?Which gene pair of Drosophila showed 37.2 per cent recombination?When two genes lie on the same chromosome, which gene combination is more frequent?Which organism did Morgan use in his studies of inheritance?Which two scientists noted that chromosomes behave parallel to genes?Who independently rediscovered Mendel's results in 1900?