In the introduction to the article, the authors write "soon after the expansion of molecular biology in the 1950’s, it became evident that by comparing proteins and nucleic acids of one species with those of another, one could hope to obtain a quantitative and objective estimate of the "genetic distance" between species". what did the authors mean? how do you "compare proteins and nucleic acids" (or how did you in 1975 when this article was written)?

What is the process of a new plant growing from its seed into a seedling? primary growth fertilization pollination germination

Group control group #1 experimental group yes yes yes control group #2 no new drug orange juice bed rest no yes no yes ves which of the following is the best explanation of why a second control group was included in this experiment? o a. to provide the volunteers in the study with something to drink o b. to prove that the common cold cannot be cured c. to confuse anyone who is trying to steal their new drug and sell it as their own invention o d. to researchers conclude that results are related to the new drug and not to the orange juice submit e previous

The smallest parts of these that retain their original properties are called