The strucure of dna is actually in a double helix arrangment. Double helix means that the two long chains of nucleotides are arranged in a spiral like a twisted ladder. The sides of the ladder are made up of alternating blank and blank molecules. The steps of the ladder are made of blank blank held together by hydrogen bonds.

Using the periodic table, determine which material is most likely a good conductor

The lake of the ozarks is a human-made lake, so it collects runoff from coal strip-mining, fertilizers, resort wastewaters, and septic drainages. the average lake temperature is between 10∘c and 21∘c. consider the physical requirements for growth and multiplication that would allow fecal coliforms to “blossom” in the lake of the ozarks. which of the following would accurately describe these organisms? check all that apply. psychrophiles facultative halophiles extremophiles mesophiles hyperthermophiles

Cloning an individual usually produces orangisms that (1) contain dangerous mutations (2) contain identical genes (3) are identical in appearance and behavior (4) produce enzymes different from the parent