Which of the following best describes the complete sequence of steps occurring during every cycle of pcr? 1. the primers hybridize to the target dna. 2. the mixture is heated to a high temperature to denature the double-stranded target dna. 3. fresh dna polymerase is added. 4. dna polymerase extends the primers to make a copy of the target dna. 2, 1, 4 3, 4, 2 3, 4, 1, 2 2, 3, 4 1, 3, 2, 4

What are two ways that harvesting algae from the ocean may benefit human society? how might the harvest of algae negatively impact the ocean communities where that algae grows? how could this be prevented?

How does the structure of dna hold the information needed to code for the many features of multicellular organisms?

The genetic code is essentially the same for all organisms. based on this information, one can logically assume which of the following statements to be correct? a. dna was the first genetic material. b. the same codons in different organisms translate into the different amino acids. c. different organisms have different numbers of different types of amino acids. d. a gene from an organism can theoretically be expressed by any other organism. e. all organisms have experienced convergent evolution.