1) What is the central dogma of biology? a) Scientists are always right and we need to listen to them. b) DNA --> RNA --> protein c) Older scientists know best d) All life is made of cells 2) Which of the follow are ALL types of mutations? a) Substitution, deletion, piecewise b) Substitution, insertion, slider c) Slider, addition, irregular d) Substitution, insertion, deletion 3) The nitrogenous bases adenine can pair with which base? a) Guanine b) Cytosine c) Thymine d) Adenine 4) A nucleotide in DNA is composed of: a) A deoxyribose sugar, a phosphate, and a nitrogenous base b) A deoxyribose sugar and a nitrogenous base c) A ribose sugar and a nitrogenous base d) A deoxyribose sugar, an R group, and a phosphate base 5) What is the role of helicase in DNA replication? a) Lays down DNA primers b) Connecting strands of DNA c) Relieves tension ahead of the twist d) Separate DNA into two single strands

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