Fill in the blank with the most appropriate option.

If the genotype of a plant is ttRr, the phenotype would be _____.

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RRB ALP CBT I 17 Aug 2018 Shift 2 Official Paper
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  1. Dwarf and Round
  2. Tall and Wrinkled
  3. Dwarf and Wrinkled
  4. Tall and Round

Answer (Detailed Solution Below)

Option 1 : Dwarf and Round
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Detailed Solution

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The correct answer is Dwarf and Round.

Key Points

  • Genotype:
    • The genetic constitution of an individual represents a single character or a set of characters.
    • This represents whether a particular character is controlled by dominant or recessive alleles.
    • It also shows if the character is homozygous or heterozygous in nature.
    • E.g. - Tall (TT or Tt), Dwarf (tt).
  • Phenotype:
    • The external appearance of an individual with respect to a particular trait.
    • E.g. - Tallness, dwarfness.
  • The given genotype is tt Rr
  • The genotype tt represents a dwarf plant and Rr represents a plant with round seeds.
  • Hence the plant is dwarf with round seeds​
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