In flies, long wings are a dominant trait, and short wings are a recessive trait. if a heterozygous long-winged fly is crossed with a short-winged fly, what is the likelihood that the offspring will contain the recessive allele?

i think it is dna, i'm not totally sure but i think it might be.

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands