In humans, the polymorphic gene 'I' has three multiple alleles due to:
Correct answer: B. Mutation
- A. Complete dominance
- B. Mutation
- C. Sex linkage
- D. Gene linkage
Explanation
The ABO system arose from mutations in the "I" gene, producing IA , IB , and i alleles.
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
Multiple alleles may exist in a population, but a diploid organism can:
Inheritance of ABO blood group system is an example of:
Alleles from a gene arise by:
The genotype of blood group 'A' can be:A. IAIA B. IAiC. IBIB D. ii
A person with antigens 'B' present in the membrane of RBCs and 'anti-A' antibodies in the blood plasma will have:
If a female has blood group A and her husband has blood group O, then the blood group of their children would possibly be: