AIIMS 2018 Botany Mendelian Genetics MCQ Question
Heterozygous tall is crossed with recessive parent. What will the percentage of homozygous recessive
75%
25%
100%
50%
Correct Answer
Detailed Explanation
When a heterozygous tall plant (Tt) is crossed with a homozygous recessive plant (tt), the possible genotypes of the offspring are Tt (tall) and tt (short). Using a Punnett square, we see that 50% of the offspring will be homozygous recessive (tt), confirming the statement. Other options are irrelevant as they do not provide any alternative answers or explanations related to the genetic cross in question. Understanding this concept reinforces the principles of Mendelian inheritance, specifically the ratios of dominant and recessive traits in offspring.
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