All such altered, alternative forms of a gene, whose number is more than two, are called:
Correct answer: C. Multiple alleles
- A. Allelomorphs
- B. Fixed alleles
- C. Multiple alleles
- D. Pseudoalleles
Explanation
The correct answer is Multiple alleles. This term describes a scenario where a gene has more than two variants or forms in a population. For example, the ABO blood group is determined by three alleles: IA, IB, and i. The other options do not accurately describe this concept: Allelomorphs refers generally to alleles but doesn't imply a specific number; Fixed alleles are not variable and are homozygous across a population; Pseudoalleles are linked genes that are similar in function but are not different forms of the same gene.
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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.
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