During hybdrid development using male sterility R line is used to
A. Make a idotypic plant
B. Bring fertility in male sterile plants
C. Make a plant resistant to specific trait
D. Increase the yield
Answer: Option B
Solution(By Examveda Team)
During hybrid development using male sterility R line is used to bring fertility in male sterile plants.The restorer line is used to restore the fertility in the hybrid after crossing with the ms A line in the hybrid production plot. The availability of fertility restorer sources in sorghum made it easy to develop hybrids and to commercially use the CMS source in producing fertile hybrid seeds.
Rf (R line) is a dominant allele for restoring male fertility and rf is its recessive allele inducing male sterility, in the presence of a male-sterile cytoplasm.
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
Join The Discussion