Consider the following genotypes
1. Breeding lines
2. Land races
3. Variety under cultivation
What is the correct sequence of these in terms of their importance to farmers
A. 1, 2 and 3
B. 2, 3 and 1
C. 3, 1 and 2
D. 1, 3 and 2
Answer: Option B
Solution(By Examveda Team)
The correct sequence of these genotypes in terms of their importance to farmers are:First of all, is Landraces, then Variety under cultivation, and lastly breeding lines.
The term “landrace” has generally been defined as a cultivated, genetically heterogeneous variety that has evolved in a certain ecogeographical area and is therefore adapted to the edaphic and climatic conditions and to its traditional management and uses.
In agriculture, a variety corresponds to a population of plants of a given species that have been selected and cultivated.
Breeding lines are a group of identical pure-breeding diploid or polyploid organisms, distinguished from other individuals of the same species by some unique phenotype and genotype.
Related Questions on Genetics and Plant Breeding
Genetic code was discovered by
A. Khorana and Methaei
B. Flemming and Methaei
C. Holley, Nirenberg and Khorana
D. Holley and Nirenberg
Progeny of breeder seed is referred to as
A. Breeder seed
B. Nucleus seed
C. Foundation seed
D. Certified seed
Molecular basis of organ differentiation depends on the modulation in transcription by
A. RNA pol
B. Transcription factor
C. Anticodon
D. All of the above
The phenomenon of linkage was first observed by
A. Bateson and Punnet
B. Nilson
C. Hugo de Vries
D. Mendel
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