One section of a strand of dna has the bases sequence agattc. what is the base sequence on the other strand?

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

not always but somethings can be reproduced in a laboratory.