Allele IA specifies the production of antibodies:
Correct answer: B. Against B
- A. Against A
- B. Against B
- C. Against A and B
- D. Against O
Explanation
The correct answer is 'Against B'. Allele IA indicates the presence of antigen A on the surface of red blood cells. As a result, individuals with this allele do not produce antibodies against A, but they do produce antibodies against B, since they lack antigen B. Option A is incorrect because individuals with allele IA do not produce antibodies against A. Option C is incorrect because antibodies against both A and B are produced by individuals with blood type O, who lack both antigens. Option D is incorrect because there are no specific antibodies produced against blood type O.
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
1,245 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
The cells of _ contain an enormous amount of DNA.
When an effect caused by a gene or gene pair at one locus interferes with or hides the effect caused by another gene or gene pair at another locus, such phenomenon of gene interaction is called:
What is depicted from the results of the test cross given here below? Round = 50%, Wrinkled = 50%.
Blood phenotype AB have:
The gene I at chromosome no. 9 of human population have:
Sickle cell hemoglobin has reduced ability to: