Nucleic acids are composed of:

A. A phosphate group, a pentose sugar, a carboxylic acid

B. A nitrogen base, an amino group, a carboxylic acid

C. A pentose sugar, a nitrogen base, an R group

D. A phosphate group, a pentose sugar, a nitrogen base

Which best describes STRs? a. a piece of non-coding DNA that consists of 9-80 repeating sequences of base pairs b. a piece of coding DNA that consists of 9-80 repeating sequences of base pairs c.

Why is the Big Bang Theory the leading theory on how our universe was created? A) The big bang is the leading theory because everyone voted for this theory.

6. A biologist hypothesizes that restricting food from mice will decrease their activity. He designs an experiment in which he observes the activity of 50 mice under restricted food regimens. Which of he following is true about his study? A.

The processes of DNA replication and RNA transcription in E. coli are similar in some respects and different in others. Select the THREE statements below that describe BOTH DNA replication and RNA transcription in E. coli. Question options: a.

the nutrients in foods perform functions in the body, what are they and briefly describe the nutrients involved in these functions

What does a control group show in an experimental investigation?

Trace the path of filtrate and urine from the glomerulus to the external urethral opening

What is the endocrine portion of the pancreas called?

In which order will seismic waves from an earthquake arrive

Which of the following represents the chemical reaction of hydrazine and hydrogen peroxide to produce nitrogen and water? A. nitrogen + hydrogen peroxide → hydrazine + water B. nitrogen + water → hydrazine + hydrogen peroxide C.