The Question is from neet-botany plant-kingdom phaeophycea, and it was created by the author D VINOD

Question

In comparition to angiosperm, which one of the following algae exhibits haplo-diplontic life cycle

D VINOD · Accepted Answer

## CORE INFORMATION
✓ **Answer**: C
## CONCEPT FRAMEWORK
**Primary Concept**: Life cycle patterns in algae
**Related Topics**: Haploid, Diploid, Alternation of generations
**Prerequisites**: Basic knowledge of algal life cycles
## SOLUTION PATHWAY
**Given Information**:
* The question asks for an alga with a haplo-diplontic life cycle, similar to angiosperms
**Method & Steps**:
1. **Recall**: Understand the meaning of 'haplo-diplontic' - an alternation of generations where both haploid and diploid multicellular stages are present.
Reasoning: Identify the key term and its biological meaning.
2. **Analyze Options**: Evaluate each algal group's typical life cycle.
Reasoning: Use knowledge of the life cycle of each of the algae.
*   Volvox and Chlamydomonas are primarily haploid, with a zygotic meiosis.
*   Ectocarpus exhibits a haplo-diplontic life cycle.
*   Fucus is diploid with gametic meiosis.
3. **Conclude**: Determine the correct option.
Result: Ectocarpus is the correct answer.
Verification: Based on established knowledge of algal life cycles.
## OPTION ANALYSIS
[A] :x: Volvox has a haplontic life cycle, not haplo-diplontic.
[B] :x: Chlamydomonas has a haplontic life cycle, not haplo-diplontic.
[C] ✓: Ectocarpus exhibits a haplo-diplontic life cycle, similar to angiosperms.
[D] :x: Fucus has a diplontic life cycle, not haplo-diplontic.
## LEARNING AIDS
**Common Mistakes**:
1. Confusing terminology: Understanding the difference between haplontic, diplontic, and haplo-diplontic is crucial.
2. Incorrectly associating algal groups with life cycles: Each group has a specific life cycle pattern.
**Quick Tips**:
1. Remember the 'D' in Diplontic stands for Diploid, and 'H' in Haplontic stands for Haploid.
2. Use diagrams of life cycles to visualize the alternating stages.

D VINOD · Answer

Volvox

D VINOD · Answer

Chlamydomonas

D VINOD · Answer

The correct Option is "Ectocarpus"

D VINOD · Answer

Fucus

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