4. In snapdragons, a gone that affects flower color has two alleles: red (R) and white (W). In heterozygous individuals, the phenotype is pink.

a. What is the genotype of a pink flower?

b. Show a cross between two pink snapdragons

and give the expected genotype and phenotype.

The embryos of a bird, a reptile, and a mammal are similar in appearance. how does comparing the physical appearance of embryos of different species support the theory of evolution? a. it shows that these organisms share a common ancestor. b. it provides evidence that these organisms eat the same foods.c. it shows that these organisms share the same habitat.d. it provides evidence that these organisms suffered a genetic mutation.