Which of the following provides evidence that all living things share common ancestors? 1.Fossil record
2.Analogous Structures
3.Homologous Structures
4.Similarities in DNA sequences

a. All of these

b. 1, 3 and 4

C.4 only

d. 2 and 3 only

Many farmers prefer cattle without horns because it is safer for their herds. the allele for no horns (n) is dominant to the allele for the presence of horns (n). a farmer mates a male with horns to a heterozygous female without horns. what is the chance that the offspring will have horns?

The normal shape of an enzyme is as shown in structure a. if the enzyme’s shape changes to that shown in structure b, what are two consequences of this change?

What form of anesthetic was used for field surgery