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Self-incompatibility in plants: Quiz

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Question 1: [47] ________, variability in pollinator service, and life history traits that are associated with weediness, among other factors, may favor the loss of SI.
BeePollinator declinePlantPollination

Question 2: This is the more common type of SI, existing in the families: Solanaceae, Rosaceae, Plantaginaceae, ________, Onagraceae, Campanulaceae, Papaveraceae and Poaceae.
FabaceaeFlowering plantLegumeFaboideae

Question 3: At 3-4 hours past pollination, fragmentation of pollen ________ begins,[17] and finally (at 10-14 hours), the cell dies apoptotically.
RNAGeneDNAProtein

Question 4: [8] The members of this group typically function as ubiquitin ligases, and they may function by recognizing the matching S-RNase molecules and sending them to ________ degradation.
ProteasomeEnzymeProteinCell nucleus

Question 5: [3] Proteins in the same family were subsequently discovered in the Rosaceae and ________.
ScrophulariaceaeFlowering plantBacopa monnieriPlantaginaceae

Question 6: As a result, ________ that break down SI (result in SC) may become common or entirely dominate in natural populations.
MutationEvolutionSpeciationPopulation genetics

Question 7: These mechanisms are based on ________-protein interactions, each mechanism being controlled by a single locus termed S, which has many different alleles in the species population.
ProteinMetabolismMyosinActin

Question 8: SI is one of the most important means to prevent selfing and promote the generation of new genotypes in ________, and it is considered as one of the causes for the spread and success of the angiosperms on the earth.
PlantArchaeplastidaRed algaeFungus

Question 9: Subsequently, the ________ protein p26, a pyrophosphatase, is inhibited by phosphorylation,[14] possibly resulting in arrest of synthesis of molecular building blocks, required for tube elongation.
MitochondrionMetabolismCell (biology)Cytosol

Question 10: The female determinant is a small, extracellular molecule, expressed in the stigma; the identity of the male determinant remains elusive, but it is probably some ________ receptor.
Cell (biology)Vesicle (biology)Cell membraneCell nucleus







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