1. DNA 2. Helicase 3. DNA Polymerase 4. DNA Replication 5. Pyrimidine a. Double stranded molecule that has a deoxyribose sugar. b. The end-product of this process are two identical copies of DNA. c. Enzyme that breaks hydrogen bonds to unwind and unzip DNA. d. Nitrogen containing base that has a single ring as its molecular structure. Thymine and Cytosine are an example of this type of molecule. e. Enzyme that covalently bonds sugars and phosphates during DNA replication.

1. true.2. true.3. true.4. false.5. true.the concept of darwin's theory of evolution involves the idea that there are limited resources in a given living environment and that the organisms which live within have variations in their genetic make up due to random mating. the ones with beneficial genetic variations can express certain traits which give them an upper hand in surviving and reproducing in the said environment compared to ones who may have a more disadvantageous variation in traits. over time, the organisms with an upper hand will survive and reproduce more frequently and pass on their beneficial genes while the others die. the result is evolution, where we observe (usually, but not always) eventually, phenotypic distinct changes.