What did mendel's cross-pollination of pea plants support?
a, certain factors are dominant, and other factors are recessive.
b, crossing a tall plant with a tall plant will always result in a tall plant.
c, inheritance of certain factors is dependent upon the genetic code.
d, all the cells in an organism carry the same hereditary factors.

a

explanation:

many plants naturally reproduce this way, but it can also be induced artificially. horticulturalists have developed asexual propagation techniques that use vegetative plant parts to replicate plants. success rates and difficulty of propagation vary greatly. monocotyledons typically lack a vascular cambium and therefore are harder to propagate.

weathering is the answer.