The situations lead to the cross pollination is
A. Protoandry
B. Heterostyly
C. Herkogamy
D. All of the above
Answer: Option D
Solution(By Examveda Team)
The situations that lead to cross-pollination are Protandry, Heterostyly and herkogamy.Protandry is the condition of flowers whose male parts mature before the female ones.
Heterostyly is a morphological and reproductive polymorphism in which plant populations are composed of two (distyly) or three (tristyly) floral morphs that differ reciprocally in the height of their stigmas and anthers.
Herkogamy is the spatial separation of the anthers and stigma in hermaphroditic angiosperms. It is a common strategy for reducing self-fertilization.
All the above condition increases the chances of cross-pollination in plants.
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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