Deoxyribose glucose guanine phosphate ribose
molecule 1 x x
molecule 2 x x x
molecule 3 x x x
molecule 4 x x

a scientist is purifying dna from a bacterium. during the purification process, a preparation is obtained that contains only four molecules. some components of these molecules are listed in this table. which of the four molecules is the dna?

a) molecule 1

b) molecule 2

c) molecule 3

d) molecule 4

How are gene and protein sequences used to classify organisms?

Can you identify which of the following groups of organisms are, or are not, populations? a. the american bison (bison bison) and grey wolves (canis lupus) currently living in yellowstone national parkb. all of the rainbow trout (oncorhynchus mykiss that) that have ever lived in lake eriec. the group of american bison (bison bison) currently living in yellowstone national parkd. a group of calliope hummingbirds (selasphorus calliope) and a group of rufous hummingbirds (selasphorus rufus) living in the same new hampshire woodse. the northern cardinals (cardinalis cardinalis) living on opposite shores of lake champlain f. all of the whales currently living in the atlantic ocean off cape cod, massachusetts

Most crimes involve some evidence relating to the human body; for that reason, what related science is frequently used in forensic investigations? a)psychiatry b)physics c)botany d)biology