Multiple Choice
The homeotic gene GLABRA-2 controls cellular differentiation in the root epidermis of Arabidopsis. Which of the following statements is/are correct?
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20. Development
Plant Development
Multiple Choice
Which of the following best describes the different features of plant life cycles?
A
Plants exhibit alternation of generations, with both haploid and diploid stages.
B
Plants have a single continuous diploid stage throughout their life cycle.
C
Plants reproduce only through seeds, without any alternation of generations.
D
Plants have a single continuous haploid stage throughout their life cycle.
Verified step by step guidance1
Understand the concept of alternation of generations: In plant life cycles, alternation of generations refers to the occurrence of two distinct phases, one haploid and one diploid, which alternate with each other.
Identify the haploid stage: The haploid stage in plants is known as the gametophyte. During this stage, plants produce gametes (sperm and eggs) through mitosis.
Identify the diploid stage: The diploid stage is called the sporophyte. In this stage, plants produce spores through meiosis, which then develop into gametophytes.
Recognize the alternation: Alternation of generations involves the transition from the gametophyte (haploid) stage to the sporophyte (diploid) stage and vice versa, ensuring genetic diversity and adaptation.
Evaluate the options: Compare the given options with the concept of alternation of generations. The correct description should include both haploid and diploid stages, as opposed to a single continuous stage or reproduction solely through seeds.
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