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If T is the gene for tall plants, and t is the gene for short plants, what is the genotype for a short plant? A) TT B) Tt C) tt D) t

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➷ It would have to be C. tt. A recessive trait requires two alleles to create a recessive phenotype.

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The genotype for short plants is generally tt

Answer: Option C

Explanation:

According to Mendelian Genetics the tall is a dominant character and short is a recessive character. There are a set of alleles that get expressed to determine each character.

These alleles are in pairs, hence for a tall plant its phenotype is tall even if its genotype is TT or Tt a single allele is enough to express the tallness whereas for a short plant both alleles should be t since it is a recessive character.

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