The oxygen-carrying protein in muscles is: MCQ with Answer and Explanation

Explanation:
Deforestation, the removal of trees and vegetation, exposes the topsoil to wind and water, leading to severe soil erosion and loss of fertility. Afforestation, the planting of trees in barren areas, increases biomass and helps in carbon sequestration, as trees absorb atmospheric CO2 during photosynthesis, mitigating global warming. Most plastics are synthetic polymers that are non-biodegradable, persisting in the environment for hundreds of years and causing pollution. Thus, statements 1 and 2 are correct.

Explanation:
The Philadelphia chromosome is a specific genetic abnormality found in the bone marrow cells of most patients with Chronic Myelogenous Leukemia (CML). It is formed by a reciprocal translocation between the long arms of chromosome 9 and chromosome 22, denoted as t(9;22). This translocation fuses the BCR gene on chromosome 22 with the ABL1 gene on chromosome 9, creating a mutant BCR-ABL1 fusion protein with constitutive tyrosine kinase activity, driving uncontrolled cell division.

Explanation:
Enzymes speed up reactions by lowering activation energy and are not consumed; they remain unchanged after the reaction. Thus, statement 2 is false. 1 and 3 are correct.