Incomplete dominance is seen in snapdragon. the allele that causes red flowers (f) is not completely dominant over the allele that causes white flowers (f). when a plant is heterozygous for the trait of flower color (ff), pink flowers result. cross two pink snapdragons, and provide the genotypic and phenotypic of all the offspring

1 FF (red) : 2 Ff (pink) : 1 ff (white)

Explanation:

The possible genotypes and phenotypes for flower color in snapdragons are:

FF = red flowers

Ff = Pink flowers

ff = white flowers

The cross between two pink snapdragons can be written as follows:

Each heterozygous snapdragon will produce two types of gametes: F and f. When they cross, a gamete from one parent joins (randomly) the gamete of the other parent, creating an individual from the progeny.

Therefore, the offspring resulting from this cross will be:

1 FF (red) : 2 Ff (pink) : 1 ff (white).

organisms that lack symmetry are called asymmetrical and belong to phylum porifera/sponges.

organisms with specialized stinging cells belong to phylum cnidaria. stinging cells are called cnidoblast cells.

cnidarians show two morphological forms : polyp (sessile) and medusa (mobile)

filter feeding is observed in porifera members.  

alternation of generation is observed in coelenterata or cnidaria. there is alternation of asexual polyp form and sexual medusoid form. it is also referred as metagenesis.