Question

Match each characteristic of Jones' and Reithel's snapdragons with its correct counterpart among Darwin's postulates: (variation is heritable); (organisms vary); (reproduction is nonrandom; organisms with favorable traits survive and reproduce better than others); (some individuals are more successful and surviving and reproducing than others)

1. 3/4 of the snapdragons had almost pure white flowers;
1/4 of the plants had yellow flowers.
2. Flower color is determined by a gene with two alleles;
SS and Ss individuals are white; ss individuals are
yellow.
3. Plants varied in the number of pollinator visits and
seeds produced.
4. White flowers attracted twice as many bee visits as
yellow flowers.

Answer 1

Jones' and Reithel's snapdragons can be matched with different postulates proposed by Darwin: 'organisms vary', 'variation is heritable', 'some individuals are more successful at surviving and reproducing than others', and 'reproduction is nonrandom; organisms with favorable traits survive and reproduce better than others'.

Step-by-step explanation:

The characteristics of Jones' and Reithel's snapdragons can be matched with different postulates proposed by Darwin:

1. 3/4 of the snapdragons with almost pure white flowers and 1/4 of the plants with yellow flowers can be matched with the postulate 'organisms vary', as it refers to the variation in traits among individuals.
2. The fact that flower color in snapdragons is determined by a gene with two alleles and that SS and Ss individuals are white while ss individuals are yellow matches with the postulate 'variation is heritable', as it explains the inheritance of traits from parents to offspring.
3. The variation in the number of pollinator visits and seeds produced in the plants corresponds to the postulate 'some individuals are more successful at surviving and reproducing than others', as it relates to the differences in reproductive success among individuals with different traits.
4. The observation that white flowers attracted twice as many bee visits as yellow flowers can be linked to the postulate 'reproduction is nonrandom; organisms with favorable traits survive and reproduce better than others', as it explains the advantage of certain traits in attracting pollinators and facilitating reproduction.