Biology

Biology, 18.07.2019 09:00, sksksjs

Afield has a population of white flowers and a population of pink flowers. if gene flow happens,

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Biology, 14.07.2019 12:00, dbryrob2557

Anew type of tulip is produced that develops only purple or pink flowers. assume that flower color is controlled by a single gene locus, and that the purple allele (c) is dominant to the pink allele (c). a random sample of 1000 tulips from a large cultivated field yields 847 purple flowers and 153 pink flowers. a gene test determines that 243 of the purple flowers are cc and 604 of the purple flowers are cc. what is the allele frequency of c in this population?

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Biology, 10.09.2019 02:30, jaylenmiller437

Claytonia virginica is a woodland spring herb with flowers that vary from white to pale pink to bright pink. slugs prefer to eat pink-flowering over white-flowering plants (due to chemical differences between the two), and plants experiencing severe herbivory were more likely to die. the bees that pollinate this plant prefer also prefer pink to white flowers, so that claytonia with pink flowers have greater relative fruit set (reproductive success) than claytonia with white flowers. a researcher observes that the percentage of different flower colors remains stable in the study population from year to year. if the researcher removes all slugs from the study population, what would you expect to happen to the distribution of flower colors in the population over time? a) the distribution of flower colors should not change. b) the percentage of white flowers should increase over time. c) the percentage of pink flowers should increase over time. d) the distribution of flower colors should randomly fluctuate over time.

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Biology, 16.09.2019 22:10, jacksoneaton

Claytonia virginica is a woodland spring herb with flowers that vary from white to pale pink to bright pink. this plant is primarily pollinated by a bee that prefers pink flowers to white flowers. claytonia with pink flowers have greater relative fruit set than claytonia with white flowers. nevertheless the percentage of different flower colors remains stable in the study population from year to year. which of these statements might explain this observation? a) the white flowers have evolved pollinator resistanceb) reproductive success does not affect evolution in this speciesc) there are repeated mutations for white flowers in this speciesd) flower color is not heritable but is instead environmentally determinede) fitness is primarily determined by fruit set in this species

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Biology, 30.09.2019 22:30, skyvargasov9cad

Claytonia virginica is a woodland spring herb with flowers that vary from white to pale pink to bright pink. slugs prefer to eat pink-flowering over white-flowering plants (due to chemical differences between the two), and plants experiencing severe herbivory are more likely to die. the bees that pollinate this plant also prefer pink to white flowers, so that claytonia with pink flowers have greater relative fruit set than claytonia with white flowers. a researcher observes that the percentage of different flower colors remains stable in the study population from year to year. given no other information, if the researcher removes all slugs from the study population, what do you expect to happen to the distribution of flower colors in the population over time a) the distribution of flower colors should not change.b) the percentage of white flowers should increase over time.c) the percentage of pink flowers should increase over time.d) the distribution of flower colors should randomly fluctuate over time.

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