How many genotypes will be produced by crossing two alleles "A" and "a"?
Correct answer: C. Three
- A. One
- B. Two
- C. Three
- D. Four
Explanation
When crossing two alleles 'A' and 'a', the potential genotypes that can be formed are AA, Aa, and aa. This results in three distinct genotypes. Options 'One' and 'Two' are incorrect because they underestimate the number of combinations. Option 'Four' is incorrect because it overestimates the number of possible genotypes.
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About Mendel's Laws of Inheritance
Mendelian inheritance explains how alleles separate into gametes and assort during reproduction, producing predictable genotype and phenotype ratios. Questions cover dominance, recessiveness, homozygous and heterozygous conditions, the laws of segregation and independent assortment, monohybrid and dihybrid crosses, test crosses and the limits caused by linked genes.
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