Choose the incorrect statement:
A) AAbbaaBB crosses will produce transgressive segregation in the F₂ generation
B) Total variation present in a population arises due to genotypic and environmental effects
C) According to Mendel, plant height is a qualitative character, but usually, plant height is a quantitative character and highly sensitive to environmental factors
D) The continuous variation in monogenic traits is due to the cumulative effect of several genes and the marked effect of environment on the expression of the characters
Choose the incorrect statement:
A) When the magnitude of the effect of the environment on phenotype increases, the phenotypic classes progressively overlap each other and form continuous variation
B) Polygenic characters show variable magnitudes of heritability, and the environment plays an important role in the development of such traits
C) The linkage among polygenes leads to slow release of potential variability
D) Transfer of a polygenic trait through the backcross procedure is much easier as compared to that of a monogenic trait
The continuous variation in minor gene characters is due to:
A) The cumulative effect of several genes
B) Marked effect of the environment on the expression of the characters
C) Both (i) and (ii)
D) None of these
Choose the incorrect statement:
A) The sum of genetic and environmental variances gives an estimate of the phenotypic variance
B) Total variation present in a population arises due to genotypic and environmental effects
C) Phenotype is the result of a joint action of genotype and environment
D) Polygenic traits show discontinuous variation; hence, classification into clear-cut groups is possible
The term "character" was given by:
A) Yule (1906)
B) East (1916)
C) Nilsson-Ehle (1908)
D) Bateson (1907)
The influence of the environment on qualitative traits is:
A) Least affected
B) Moderately affected
C) Highly affected
D) None of these
Polygenes have:
A) Cumulative micro effect
B) Cumulative macro effect
C) Cumulative micro and macro effect
D) None of these

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