Correct option is C
Explanation-
Option a : "The estimate obtained from a given population and in one set of environment can be extrapolated to other population and sets of environment." - INCORRECT
Heritability is environment- and population-specific. We cannot generalize heritability estimates from one population/environment to another. This is a common misunderstanding.
Option b : "The estimate is a population as well as an individual parameter." - INCORRECT
Heritability is a population-level statistic, not for individuals. It does not apply to a single person; it describes variation within a group.
Option c : "Heritability measures the proportion of the phenotypic variation that is the result of genetic factors." - CORRECT
This is the definition of heritability.
Heritability (H² or h²) = Genetic variance / Total phenotypic variance
It tells us what proportion of variation in a trait is due to genetic differences.
Option d : "Heritability indicates the degree to which a trait is genetic." - INCORRECT
It might seem correct, but it’s imprecise. Heritability doesn't tell how genetic a trait is in an absolute sense — it tells you how much of the variation in a population is due to genetics.
Final Answer: Option c
