Explanation:
Ecuador is located in northwestern South America and borders the Pacific Ocean, making Statement 1 correct.
Statement 2 is correct as the Andes in Ecuador are divided into two parallel chains—Cordillera Occidental and Cordillera Oriental.
Statement 3 is also correct. Mount Chimborazo is the highest peak in Ecuador and notable for being the point farthest from Earth’s center due to equatorial bulge.
The country has diverse ecosystems including coastal plains, mountains, and Amazon rainforest.
It also hosts active volcanoes like Cotopaxi.
The geography contributes to varied climate zones.
Ecuador is also known for its biodiversity and ecological richness.
Q. Consider the following statements regarding Spinal Muscular Atrophy (SMA):
1. It is caused by mutation in the SMN1 gene.
2. It primarily affects motor neurons controlling movement.
3. It has a complete cure available.
Which of the statements given above is/are correct?
(a) 1 and 3 only
(b) 2 and 3 only
(c) 1 and 2 only
(d) 1, 2 and 3
Answer: (c) 1 and 2 only
Explanation:
SMA is caused by mutations in the SMN1 gene, making Statement 1 correct.
It affects motor neurons, leading to muscle weakness, making Statement 2 correct.
Statement 3 is incorrect because there is no complete cure, only management options.
It is a genetic disorder affecting neuromuscular function.
Symptoms include muscle atrophy and weakness.
Severity varies across types.
Early diagnosis improves management outcomes.

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