Traits which show continuous variation is referred as ?
A.
Genetic disorders
B.
Phenotypic variation
C.
Quantitative traits
D.
Qualitative traits
Answer: Option C
Explanation:
On quantitative inheritance, the phenotype of an individual depends upon the number of dominant alleles involved. Here, all the genes show additive effects on the gene.
Which of the following factor does not contribute to quantitative traits?
A.
Polygenes
B.
Environmental
C.
Genetic
D.
Carbohydrate content
Answer: Option D
Explanation:
Quantitative inheritance is more complex inheritance than Mendelian inheritance as these are influenced by polygenes, genetic factors, and environmental factors.
Which of the following describes the dissimilarity in the traits due to the variation in genetic factors?
A.
Polygenic
B.
Heritability
C.
Quantitative trait loci
D.
Maternal effect
Answer: Option B
Explanation:
Heritability is a concept of variation which arises due to genetic factors. Often, this term also used to show a resemblance of parents to their offsprings.
Which of the following describes the inheritance controlled by cytoplasmic genes?
A.
Extranuclear inheritance
B.
Heritability
C.
Environmental factors
D.
Complex trait
Answer: Option A
Explanation:
The cytoplasmic inheritance arises due to plasma genes located in cell organelles. The first time evidence for the cytoplasmic inheritance was presented by coherence in Mirabilis jalapa.