Vegetative propagation concept: When a gardener takes a cutting from a plant and roots it, the new plant is best described as a…

Biotechnology Biosensors and Biochips Difficulty: Easy
Choose an option
  • A
    Clone (genetically identical to the donor plant)
  • B
    Mutation (novel genotype by definition)
  • C
    New species (taxonomically distinct)
  • D
    New variety created by sexual recombination
  • E
    Random chimera with mixed genomes

Answer

Correct Answer: Clone (genetically identical to the donor plant)

Explanation

Introduction / Context:Vegetative propagation is an asexual method used extensively in horticulture and forestry to maintain elite genotypes. Cuttings, grafts, and micropropagation produce plants that retain the genetic identity of the donor.

Given Data / Assumptions:

  • A stem or leaf cutting is taken from a plant and induced to root.
  • No sexual reproduction (meiosis or fertilization) occurs.
  • Somaclonal variation is rare compared with standard cutting propagation.

Concept / Approach:Because meiosis and fertilization are absent, the nuclear genome of the cutting remains the same as the mother plant. The resulting plant is therefore a clone, preserving the cultivar’s traits such as fruit quality, flower color, or disease resistance.

Step-by-Step Solution:

Recognize the propagation mode: asexual via cuttings.Infer genetic consequence: no recombination → genetic identity retained.Conclude that the product is a clone.

Verification / Alternative check:Commercial crops like grapevine, banana, and many ornamentals are propagated clonally to maintain uniformity—evidence that cuttings produce clones.

Why Other Options Are Wrong:

Mutation: possible but not inherent to cutting; the default outcome is genetic identity.New species or variety: requires genetic divergence and breeding, not simple cuttings.Random chimera: not a standard consequence of cuttings.

Common Pitfalls:Confusing morphological changes due to environment with genetic change.

Final Answer:Clone (genetically identical to the donor plant).

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