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What is the primary advantage of vegetative propagation in plants?
It produces genetically diverse offspring
It allows plants to grow in extreme temperatures
It produces plants that are genetically identical to the parent
It eliminates the need for water during growth
It produces plants that are genetically identical to the parent
Vegetative propagation is a form of asexual reproduction where a new plant grows from a vegetative part of the parent plant such as stems, roots, or leaves. Since this process involves only mitosis and no fusion of gametes, the resulting offspring are genetically identical to the parent.
Vegetative propagation is a form of asexual reproduction where a new plant grows from a vegetative part of the parent plant such as stems, roots, or leaves. Since this process involves only mitosis and no fusion of gametes, the resulting offspring are genetically identical to the parent.
Think of it like using a photocopier; you get an exact replica of the original document because you are using the same information without any changes, unlike drawing a new image by hand.
CLONE: Copying Living Organisms Naturally Everywhere.
NgeneticsтАЛ=NparentтАЛ тАФ represents identical genetic constitution
The mechanism relies on totipotency, where undifferentiated somatic cells possess the potential to divide and differentiate into a complete organism. Because there is no genetic recombination through meiosis, the DNA sequence of the daughter plant remains an exact clone of the parent's genome (DparentтАЛ=DoffspringтАЛ).
No meiosis or fertilization is involved.
Offspring are clones of the parent plant.
Allows for faster propagation compared to sexual reproduction from seeds.
Uniformity in crop characteristics is ensured.
Uniformity in traits
Faster maturity of offspring
Preservation of desirable parental characteristics
Lack of genetic diversity makes populations susceptible to pests or diseases
Reduced adaptability to changing environmental conditions
Horticulture for cultivating bananas and sugarcane
Grafting and layering in fruit trees
Vegetative propagation occurs naturally (e.g., runners in strawberries) or artificially (e.g., cutting, grafting).
Option A is incorrect because genetic diversity is a result of sexual reproduction due to independent assortment and crossing over during meiosis.
Option B is incorrect because vegetative propagation does not intrinsically provide tolerance to extreme temperatures.
Option D is incorrect as all biological growth processes require water for cellular turgor and biochemical reactions.
C is correct тАФ It produces plants that are genetically identical to the parent
Always remember: Asexual reproduction = Mitosis = Genetic clones; Sexual reproduction = Meiosis = Genetic diversity.