Imagine a dihybrid cross. if there are 100 progeny (we are talking about flies here), approximately how many flies would you expect to be homozygous recessive for both traits?

hammurabi rulers

good lesson

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