Multiline cultivars are deliberated mixtures of

A. Unrelated line

B. Isogenic lines

C. Unrelated lines

D. All of these

Answer: Option B

Solution(By Examveda Team)

Multiline cultivars are deliberated mixtures of Isogenic lines.
Multiline variety is a mixture of several pure lines of similar phenotype but has different genes for the character under consideration the disease resistance means these are isogenic lines.
Isogenic lines are defined as individuals that possess the same genotype irrespective of their homo- or heterozygous nature.