A forensic scientist is trying to find out the number of adenine bases in the DNA sample that he obtained from a crime scene. What can he assume about the number of adenine?

Group of answer choices

The number of adenine bases will be equal to the number of guanine bases.

The number of adenine bases will be half of the number of cytosine bases.

The number of adenine bases will be equal to the total of all the other bases.

The number of adenine bases will be equal to the number of thymine bases.

Use the drop down menus to match each example to the fossil topic discussed then to show how the fossil record gives evidence of evolution

Anne, an intern in a microbiology lab, was observing the characteristics of various specimens of protists. match each specimen to the category of protist to which it belongs.

Which statements best describe the differences or similarities between a comparative investigation and an experimental investigation? check all that apply. experimental investigations are best for showing cause-and-effect relationships, while comparative investigations do not necessarily show this type of relationship. comparative investigations are often impractical and unrealistic, while experimental investigations are the most practical and realistic kinds of investigations. comparative investigations allow for the use of a wide range of variables but do not have a control group, while experimental investigations involve variables that can be controlled. both experimental investigations and comparative investigations are designed to answer scientific questions. both experimental investigations and comparative investigations focus on making observations rather than collecting new data.